[Q] Nexus 7 USB Audio Output - Nexus 7 Q&A, Help & Troubleshooting

Hey guys! A soon to be newcomer to the Android world! I plan to buy a Nexus 7 Gen 2 LTE to install in my dash (I have a Cruze), right now, my car can control my iPhone through the radio (I can browse, play, etc...) and it'll also display my song title, artist, etc... I can also do this with Flash Drives and I want it available through the Nexus 7, I've read many post and all the information is scattered and I need a concrete answer before I buy the Nexus 7 and what I need, as far as I can tell is:
1) Nexus 7 (derp)
2) USB OTG Cable
3) USB Y Cable (usb port is 0.5 amps and wont charge, plan to use a 2 amp charger and the other output for the music)
I need to know which Kernel and OS to use (please use full names ) and if you could recommend me a good audio player, please do.
I also want to make a custom GUI to mimic an OEM headunit, with a Chevy bowtie background and buttons for NAV, Music, Browser, etc...
Also, I've made custom GUI's for Blackberries, I can't remember the name of the tool you used to create them, but it was really easy to use, is there a program like that one?

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Car installation headache

Ok, so I've been trawling the threads for hours and the time has come to make my first post on this..
Here's what I really want to do, and whether or not, as I understand, I can do it:
Nexus 7 in dash, 3G model - fine, been done loads of times
250GB USB HDD, connected via USB OTG, containing my music library - possibly, depends on my hard drive? Will it work if I can provide a secondary source of power to the HDD (my caddy allows this)
Charge the N7 at the same time - again possibly, with CM10 and kernel mod? Also new to Android so shooting in the dark a bit here.
OPTIONAL/BACKUP IDEAS:
Wi-Fi drive of some sort - If it works then maybe, seems like an extreme option though for a car install.
Google Music and stream my entire collection (I have 15GB monthly data sim that I can use in the N7) - will work but not ideal for me. I have a lot of lossless music which I won't be able to take advantage of this way. Which brings me on to...
USB DAC through OTG cable - possible I know, but to do this on top of the other stuff is gonna be difficult and unreliable? Can live with just the headphone jack output for the time being, unless:
Utilise the pogo pins for a line out and charging - would be a nice solution in the car but again, possible?
It would be fantastic if someone could tie this all together simply for me somehow, or if anyone has any far better ideas for what I'm trying to do :good:
Also feel free to ridicule my noob-ness
Cheers

[Q] Is there is a ROM or kernel with FULL USB Audio Support?

I would love to use USB Audio on the Nexus 10 such that I can use it when it is playing music from google play music, or locally through the stock music player, NOT through USB Audio Recorder Pro.
I have a Nexus 10 and a Verizon Note 2, both stock unrooted, and it's frustrating because the only way I can enjoy USB Audio on those is with USB Audio Recorder Pro.
Since my Verizon Note 2 is from work, that leaves my Nexus 10 which I could root, unlock, and load a recovery and a ROM (well I have a touchpad with 4.2.2 rom, but I can't even get the device to recognize that a USB audio device is plugged in, but I really want this on my Nexus 10). Is there a ROM right now (or a kernel that I use with the stock ROM) that has full support of USB Audio so any DAC I plug in via USB (With USB OTG cable, of course) will work for any audio coming from the Nexus 10, not just using that USB Audio Recorder Pro app?
Thanks!
I remember this coming up all the time on the Galaxy nexus as well. A couple kernels added full support on their end for all the modules required to use a USB DAC, however the ROM side of things also needs to have special parts included to make it work and I dont think anyone really figured out how to do that or every ROM dev simply didnt want to. So most likely you will always be stuck using whatever app you use to make it work.

DVB-T

Any chance to use an USB DVB-T DONGLE with NEXUS PLAYER?
Maybe. You want "TV" on your Set top box ?
Software is the tricky part. Does this work ? : http://www.geniatech.com/pa/pt115m.asp
I recall a decent thread here on XDA somewhere but can't find it right now and seem to recall the app wasn't going anywhere too fast.
And there's at least one 3 star app on Play, but doesn't work for many people.
I'll be happy just to get FM radio, with SDR Touch or whatever...
thanks, can be a thing like that but I want to use any usb dongle that I want and not a single choose like that.
For example I'v build for my daily use, a mini barebone with a small debian distro with VDR, in this way I can play divx and dvb-t as I want but, if my dongle usb dvb-t for any reason broke........I can buy the first dongle usb that I found on any market online, compile kernel module for that dongle and put in usb port it, it's so simple.......
I love nexus player, 99$ about, remote control, android marke, playing game, youtube, and more infinite possibility, but at TV DVB side I want be free to use any usb dongle DVB for desktop pc as I made today
There's any chance to get, nexus player kernel, enable DVB module for dongle, put inside usb port of nexus player, and watch tv?
At software side, is need an app or Android TV S.O. is capable to manage DVB correctly?
Thanks in advance!
Do you have any other Android devices? If you're already comfortable recompiling a kernel to support your hardware, I'd suggest trying that on a different Android device first. Then you would know if the Android framework could handle such a device.
EDIT: Here's a link to the Android TV developer site about supporting live TV in Android TV. It appears it's designed around that being possible, so if you can add your tuner hardware support to the kernel I don't see why it wouldn't be possible to make it work within Android.
ok tnx

USB Audio Note 4

Had Iphone 6 USB on my 2011 Buick Regal USB Audio worked flawless, my wife's phone LG G4 works great.
Got tired of apple & decided to go with Samsung Note 4 now I cant get it to work, tried multiple cables, update to Lollipop 5.0 & 5.1 & none of these worked.
Called Buick they said I should use AUX cable instead, obviously I did not like that response.
DoI need to root? or is this a lost cause.
Silverobot said:
Had Iphone 6 USB on my 2011 Buick Regal USB Audio worked flawless, my wife's phone LG G4 works great.
Got tired of apple & decided to go with Samsung Note 4 now I cant get it to work, tried multiple cables, update to Lollipop 5.0 & 5.1 & none of these worked.
Called Buick they said I should use AUX cable instead, obviously I did not like that response.
DoI need to root? or is this a lost cause.
Click to expand...
Click to collapse
I would post a link to a website with pictures and information about what you are talking about as I have no idea what that is.
Once I understand what exactly it is I might be able help.
Just guessing but are you talking about some kind of headphone cable that uses USB to connect instead of jack?
Sent from my Note 10.1 2015 (Special Edition)
Zionator said:
I would post a link to a website with pictures and information about what you are talking about as I have no idea what that is.
Once I understand what exactly it is I might be able help.
Just guessing but are you talking about some kind of headphone cable that uses USB to connect instead of jack?
Sent from my Note 10.1 2015 (Special Edition)
Click to expand...
Click to collapse
edmunds (dot) com/buick/regal/2011/long-term-road-test/2011-buick-regal-cxl-turbo-pop-out-usb-port.html
Link attached is the USB port in car, you plug in any IOS device or LG apparently & it picks up the audio being played.
The Bluetooth feature doesn't support audio, was relying on the USB port to play music in car over Google Play.
Before getting android I tried a Samsung S4 Active & it would appear it registered it but would immediately disconnect on both sides.
I figured it was hardware side as my wifes LG G4 worked perfect decided to switch my iPhone for a Note 4 & when I plug it in the USB nothing happens.
Silverobot said:
edmunds (dot) com/buick/regal/2011/long-term-road-test/2011-buick-regal-cxl-turbo-pop-out-usb-port.html
Link attached is the USB port in car, you plug in any IOS device or LG apparently & it picks up the audio being played.
The Bluetooth feature doesn't support audio, was relying on the USB port to play music in car over Google Play.
Before getting android I tried a Samsung S4 Active & it would appear it registered it but would immediately disconnect on both sides.
I figured it was hardware side as my wifes LG G4 worked perfect decided to switch my iPhone for a Note 4 & when I plug it in the USB nothing happens.
Click to expand...
Click to collapse
OK link is useless as I cannot click it.
Have you checked if the company you got the USB from makes any kind of app or driver to use on some android phones?
I can assure you Bluetooth audio works very well as I use it often with my Bluetooth speakers. I also used it to stream music to my Sony car stereo via Bluetooth.
I have never used the USB to stream music but I know that there is an app that does some thing to make phone simulate a USB stick so if you where to connect the phone via USB to a stereo deck it would play the music on the deck from the phone.
Sadly I cannot remember what it was called.
Sent from my Note 10.1 2015 (Special Edition)
Zionator said:
OK link is useless as I cannot click it.
Have you checked if the company you got the USB from makes any kind of app or driver to use on some android phones?
I can assure you Bluetooth audio works very well as I use it often with my Bluetooth speakers. I also used it to stream music to my Sony car stereo via Bluetooth.
I have never used the USB to stream music but I know that there is an app that does some thing to make phone simulate a USB stick so if you where to connect the phone via USB to a stereo deck it would play the music on the deck from the phone.
Sadly I cannot remember what it was called.
Sent from my Note 10.1 2015 (Special Edition)
Click to expand...
Click to collapse
copy link & replace (Dot) with a . , 2011 Buick does not support Bluetooth audio.
I've heard of this app but it required root, I'd be willing to root the phone but the amount of Firmware & versions seems like asking for trouble.
T-mobile Note 4
Silverobot said:
copy link & replace (Dot) with a . , 2011 Buick does not support Bluetooth audio.
I've heard of this app but it required root, I'd be willing to root the phone but the amount of Firmware & versions seems like asking for trouble.
T-mobile Note 4
Click to expand...
Click to collapse
Well I can't copy as I use tapatalk.
www.google.com
Easy to make a clickeble link.
OK so that buick thing is not the USB cable so I assume it's some kind of speaker system.
Regarding the root. Custom roms are much better then bloated stock roms in my opinion so it's well worth it and specially now that Note 5 ports are out.
Plus even if you wish to keep stock rom just rooting it will give you full ownership over your phone but nonrooted users can't really say the own there phones as both Samsung and phone company have more control over your phone then you ?
Anyways I strongly suggest you at least root the phone. No need to change firmware if you don't want to but the rooting process alone will give you unlimited freedom with the phone beyond the possibility of icrap can offer with jailbreak.
Sent from my Note 10.1 2015 (Special Edition)
Silverobot said:
copy link & replace (Dot) with a . , 2011 Buick does not support Bluetooth audio.
I've heard of this app but it required root, I'd be willing to root the phone but the amount of Firmware & versions seems like asking for trouble.
T-mobile Note 4
Click to expand...
Click to collapse
Do you stream through USB or using MTP & treat your Phone as a USB Storage?
EDIT:
I found this thread & I hope it will help you.
USB Flash Drive use in Audio System
There's a possibility that your Note 4 microSD card was formatted using exFAT & the "old" Buick USB system can't recognize it.
Try to use FAT32 (with its inferiority towards exFAT).
Another solution is using AUX (Draining Note 4 battery)
Last resort is using USB flash drive
NOTE:
Some system can only recognize limited size of USB storage.
Some are limited only to 4 GB, some can only read 32GB & won't read anything with larger capacity.
d4rkkn16ht said:
Do you stream through USB or using MTP & treat your Phone as a USB Storage?
EDIT:
I found this thread & I hope it will help you.
There's a possibility that your Note 4 microSD card was formatted using exFAT & the "old" Buick USB system can't recognize it.
Try to use FAT32 (with its inferiority towards exFAT).
Another solution is using AUX (Draining Note 4 battery)
Last resort is using USB flash drive
NOTE:
Some system can only recognize limited size of USB storage.
Some are limited only to 4 GB, some can only read 32GB & won't read anything with larger capacity.
Click to expand...
Click to collapse
Stream over USB going to see what I can think of, was going to get LG phone but was told not to did not expect Samsung to have these issues but def going to root now. Thank you
Silverobot said:
Stream over USB going to see what I can think of, was going to get LG phone but was told not to did not expect Samsung to have these issues but def going to root now. Thank you
Click to expand...
Click to collapse
Sorry for asking this, but do you know what streaming means? (no offense )
If you are streaming the music, it means you are playing the music from your Mobile Phone & direct the sound out of it through either USB, Bluetooth or AUX.
So Streaming will drain your Phone battery.
Usually, car USB system doesn't do this.
Car USB system usually access any device connected through USB as a USB Mass Storage Device & then play the content using its own built in Audio System.
Have you checked the link I gave you?
d4rkkn16ht said:
Sorry for asking this, but do you know what streaming means? (no offense )
If you are streaming the music, it means you are playing the music from your Mobile Phone & direct the sound out of it through either USB, Bluetooth or AUX.
So Streaming will drain your Phone battery.
Usually, car USB system doesn't do this.
Car USB system usually access any device connected through USB as a USB Mass Storage Device & then play the content using its own built in Audio System.
Have you checked the link I gave you?
Click to expand...
Click to collapse
My car USB does have this feature can play audio of a youtube vid, google play radio, pandora, ect over USB on selected devices it seems.
As stated above it works fine with an LG & IOS phones but has yet to work on Samsung.
Thought there could be a quick fix out there, but that doesnt seem to be the case.
More likely going to swap my phone out for an LG if I can find someone willing.
Worst case scenario I have a iphone 4 which I will use via hotspot in the car.
Silverobot said:
My car USB does have this feature can play audio of a youtube vid, google play radio, pandora, ect over USB on selected devices it seems.
As stated above it works fine with an LG & IOS phones but has yet to work on Samsung.
Thought there could be a quick fix out there, but that doesnt seem to be the case.
More likely going to swap my phone out for an LG if I can find someone willing.
Worst case scenario I have a iphone 4 which I will use via hotspot in the car.
Click to expand...
Click to collapse
Do you mean that you play your media on your Car System?
If you do, then check your microSD.
May be your LG use FAT32 for its microSD & Note 4 use exFAT for its microSD.
Some 2011 car systems can't recognize exFAT filesystem.
d4rkkn16ht said:
Do you mean that you play your media on your Car System?
If you do, then check your microSD.
May be your LG use FAT32 for its microSD & Note 4 use exFAT for its microSD.
Some 2011 car systems can't recognize exFAT filesystem.
Click to expand...
Click to collapse
Thanks for suggestion but it did not work, for the meantime using an Iphone 4 via hotspot for my normal commute I just use FM radio.
Was thinking maybe I can have hotspot automatically turn on when I'm in my car but that might be too much to ask for with current technology.
You win some, you lose some this one I lost no one interested in changing Note 4 for LG G4 in my area.

IPOD Cable

I have purchased an Xtrons PF75ATTA. As I understand this information is some what useless so other information includes (MCU Version: MTCD_GS_V1.75_1 and Build Number: rk3188).
As I am sure most owners of similar headunits find even basic technical support is some what limited. So to my question
On the back of the unit I have a 8 pin connector titled D: split machine 3 ipod. In the factory settings it says ipod = yes. and there is an ipod app as part of the stock rom.
xtrons tell me the unit doesn't support ipod but I get the impression that is not the end of it. The back of the unit looks identical to other units and the cable for a pimpkin hu device looks like the cable I need (Unfortunately I am to much of a noob to be trusted to post links at the moment). So I guess my questions are as follows
1. Does anyone else have a unit which specifies it doesn't support Ipod yet has ports for it (other than USB)
2. Has anyone successfully got this working?
3. If so where did you get your cable from or did you make it?
4. If you made it what were the pinouts?
Thanks
i could never get an iPod to work right on my Joying and when I posted on the Joying forum, seemed like no one else could get it to work either.
Prior to getting the Joying, I was emailing with RoadNavi.com's support about the S160 series, and they also said their units didn't really work with an iPod
CadillacMike said:
i could never get an iPod to work right on my Joying and when I posted on the Joying forum, seemed like no one else could get it to work either.
Prior to getting the Joying, I was emailing with RoadNavi.com's support about the S160 series, and they also said their units didn't really work with an iPod
Click to expand...
Click to collapse
With your joying did you have a specific ipod cable with ipod connector on one end and proprietary connector on the other end or were you using a standard ipod to usb connector and plugging it into the usb port? This can't be that difficult to do. My old Parrot Asteroid did it with no problems.
i used an iPod Classic with a 30 pin connector. I had a 30 pin to USB cord that worked fine in 2 different cars. I tried that on both the USB cords with no luck.
Road Navi does have an iPod specific plug and cable, but they said it didn't work right either
Yes, I can understand why a standard ipod 30 pins usb connector may not work. Can anyone share there experiences with a hui fei unit with dedicated ipod port and cable. Does it work as expected?
chammock said:
Yes, I can understand why a standard ipod 30 pins usb connector may not work. Can anyone share there experiences with a hui fei unit with dedicated ipod port and cable. Does it work as expected?
Click to expand...
Click to collapse
From what I have researched so far :- (Feel free to add or correct me) -
Standard IPOD Classic 6th gen works fine with the current Honda head units, which are still in the dark ages and running a Honda version of Android 6. !! (heavily LOCKED down so that nothing can be added with rooting)
Same device does NOT run on a Eonon GA2170B, running Android 8, even though the IPOD app is pre-installed, even when IPOD support that is turned off by default in Factory setting, is turned back on.
Turning on Ipod support still does allow Ipod Classic 6th gen to communicate with the installed Ipod App.
From what I have read, this is because the Eonon GA2170B is Android 8, and the "old" Ipod firmware is not compatible with the later Android versions.
There are Firmware alternatives for the Ipod (either permanent of via a dual boot), that claim to make the Ipods work with Android 8, with varying success, depending on the Model Ipod.
I have chosen to not mess with my Ipod, but rather to copy all its music onto a Mico SD card (or USB stick), and then use that in the Eonon unit with a suitable player, that can select Title, Album, Song, Artist from the Mp3's meta data.
Some many advantages of this are:
(a) Music is always in the Car,
(b) Ipod is NOT in the Car, getting HOT (or stolen)
(c) No need to worry about charging the Ipod.
(d) Far easier to add additional music (ITunes sucks )
I did find an OLD IPOD emulation Player app, that had a user Interface looking like the Classic Apple Ipod UI, but it was no longer on the Play Store, and when I got it from the author's website (5+ year old ), it also did not run on the Eonon Androis 8 unit.
BTW: My Eonon GA2170B is advertised as having 3 USB ports, but in fact it has 4 !
1 standard USB Port on the Back = USB 1
2 additional ports on a plug in cable to back = USB 2 & USB 3
1 Port on the front ( next to the front Mini SD port) USB 4
So, plenty of Ports to add USB storage devices with Music on them !!

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