Go Back   MustangForums.com > Ford Mustang Tech > Audio/Visual Electronics
Sign in using an external account
Register Forgot Password?
Search


Audio/Visual Electronics Wired up? Everyone's got some sort of electrical modification... let's hear about it here.

Welcome to Mustang Forums!
Welcome to Mustang Forums.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, at no cost, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!


Reply
 
 
 
 
Thread Tools Search this Thread
Old 11-01-2013, 03:28 AM   #1
gregthomas07gt
 
Join Date: Nov 2013
Vehicle: 2007 Mustang GT
Location: Kentucky
Posts: 31
Default My Nexus 7 Dash Install Project

New to the forums, not new to Mustangs! I wanted to share my project in case it might help someone else.

So I just bought a 2007 Mustang GT a few months ago, and traded in my 06 which had a nice Kenwood head unit with navigation. I liked the Shaker that was in my 07 but I really missed the navigation.

Navigation head units are not cheap!!! This got me thinking... what if I could install an Android tablet? I'd have music, navigation, voice commands, and full access to any app on the Google Play Store. So after doing some research I decided this was the route I wanted to go.

I had a few caveats in mind... it had to fit in the double din hole in the dash, and I wanted to be able to put the Shaker back in if the project didn't work out or if I decided to sell the car.

So here are the items I went with and the steps I followed.

Nexus 7 - has bluetooth, gps and is fairly close to the size of the double din hole in the dash.

Custom ROM - Timur's USBROM http://mehrvarz.github.io/nexus-7-usbrom/ This is the only way to go for a fixed car install. It enables USB host options allowing you to connect a hub, a flash drive, wireless remote, etc. It also allows for fast charging from the same micro usb port and has a standby feature when the power is turned off.

OTG Y Cable - http://www.ebay.com/itm/251343009305...84.m1497.l2649 Allows for fast charging and powering a hub connected at the same time

USB Hub - http://www.ebay.com/itm/280964488313...84.m1439.l2649

Power Inverter - http://www.ebay.com/itm/171136813489...84.m1439.l2649 Needs to supply 2 amps for the tablet and at least 1/2 amp per hub output. This may end up being to small for my setup.

USB DAC - http://www.ebay.com/itm/290996438101...84.m1439.l2649 Most tablets have built in DACs to provide audio to the headphone out port but they do not provide a clean enough audio stream for anything other than headphones.

External USB port - http://www.ebay.com/itm/190926565796...84.m1439.l2649 for charging or attaching other devices.

Since I removed the Shaker and my USB DAC only provided line level audio the only amplification I had were the stock amps for the door subs so I also purchased a couple of amps and a Kicker 12" sub in a box designed for the Mustang trunk.

So this is how this works, the OTG Y cable plugs into the Nexus and it has a standard female usb port and a female micro usb port. The power inverter provides 5 volts to a female usb port. The original Nexus charging cable plugs into it, and into the female micro usb end on the OTG cable. This provides charging for the Nexus and power for the hub and devices plugged into it. The hub plugs into the OTG female usb port and the DAC, external usb port and a flash drive plug into the hub. The inverter is wired into an ignition switched 12v source and provides power and charging when the ignition is on. When the ignition is turned off, the tablet goes into standby. The Nexus usually discharges about 2% over night, so it is completely recharged minutes after I start my car. I also tether to my phone for data. I'm still working on an external microphone for hands free calling and voice commands.

Here are a few pics of the install.
Click the image to open in full size.
My Pony

Click the image to open in full size.
Testing everything

Click the image to open in full size.
Test fit... not perfect, I've got more plans for this.

Click the image to open in full size.
Wiring the inverter and mounting the DAC

Click the image to open in full size.
The only modification I had to make. Had to have room for the cable.

Click the image to open in full size.
Booting up

Click the image to open in full size.
Installed

Click the image to open in full size.
Standby when key is off

I'm still working out a few bugs so if anyone is interested I'll post more. Thanks for looking!!!
Greg
This ad is not displayed to registered or logged-in members.
Register your free account today and become a member on Mustang Forums!
gregthomas07gt is offline   Reply With Quote
Old 11-01-2013, 09:39 AM   #2
Matt's 95 Stang
Resident Ginger
 
Matt's 95 Stang's Avatar
 
Join Date: Nov 2006
Vehicle: 2011 3.7 Premium
Location: Cali
Posts: 4,617
Default

I did the same thing in my '11 but with a Samsung Galaxy 7.0. I will end up taking mine out and putting the OEM radio back in as the tablet left me with a dead battery twice and I have nothing but issues trying to get it to connect to SYNC. I wish you the best luck friend!

Matthew
__________________



2011 Coupe - 3.7 Premium - BAMA tune, AirRaid CAI, GT500 spoiler, staggered AMR 20's, BMR PHB & LCAs. Eibach springs, and sways, Raxiom Navi, Roush axlebacks, BBK headers
Matt's 95 Stang is online now   Reply With Quote
Old 11-01-2013, 04:53 PM   #3
gregthomas07gt
 
Join Date: Nov 2013
Vehicle: 2007 Mustang GT
Location: Kentucky
Posts: 31
Default

Quote:
Originally Posted by Matt's 95 Stang View Post
I did the same thing in my '11 but with a Samsung Galaxy 7.0. I will end up taking mine out and putting the OEM radio back in as the tablet left me with a dead battery twice and I have nothing but issues trying to get it to connect to SYNC. I wish you the best luck friend!

Matthew
I've heard of this happening but since the power inverter which charges the tablet shuts completely off when the ignition is off there's no chance of this happening with mine.
gregthomas07gt is offline   Reply With Quote
Old 11-02-2013, 07:54 PM   #4
Matt's 95 Stang
Resident Ginger
 
Matt's 95 Stang's Avatar
 
Join Date: Nov 2006
Vehicle: 2011 3.7 Premium
Location: Cali
Posts: 4,617
Default

Good job. I wish I could get my '11 to sit flush like you did but the bezel design just wouldnt let me do it. I really wish I could get it to work as its great to have all your music at your finger tips, and have navigation at a fraction of the cost.

Matthew
__________________



2011 Coupe - 3.7 Premium - BAMA tune, AirRaid CAI, GT500 spoiler, staggered AMR 20's, BMR PHB & LCAs. Eibach springs, and sways, Raxiom Navi, Roush axlebacks, BBK headers
Matt's 95 Stang is online now   Reply With Quote
Old 11-03-2013, 10:25 AM   #5
gregthomas07gt
 
Join Date: Nov 2013
Vehicle: 2007 Mustang GT
Location: Kentucky
Posts: 31
Default

Quote:
Originally Posted by Matt's 95 Stang View Post
Good job. I wish I could get my '11 to sit flush like you did but the bezel design just wouldnt let me do it. I really wish I could get it to work as its great to have all your music at your finger tips, and have navigation at a fraction of the cost.

Matthew
How is the charger hooked up on your Galaxy? If it doesn't turn off with your ignition then thats where you should start. I use an app called Tasker to do a lot of automatic stuff such as automatically starting BT tethering with my Galaxy S3. If your charger turned off when the key is off you could have Tasker turn the screen off and start Airplane mode when the charger stops, that way your Tablet battery wouldn't run down. It could reconnect and turn the screen on when the charger starts back up.

Can't help you with SYNC though, never used it before.
gregthomas07gt is offline   Reply With Quote
Old 12-10-2013, 02:49 PM   #6
Tang_and_Stang
 
Join Date: Dec 2013
Vehicle: 2010 Ford mustang
Location: CA
Posts: 6
Default

Seriously considering doing this. Do you have any regrets? What would you recommend for me?
Tang_and_Stang is offline   Reply With Quote
Old 12-10-2013, 03:53 PM   #7
AJ06GT
5th Gear Member
 
AJ06GT's Avatar
 
Join Date: Sep 2006
Vehicle: 2006 Redfire GT Vert
Location: Raleigh, NC
Posts: 2,896
Default

Hey, just saw this posted. I actually have been working on and test fitting and doing a lot of bench testing of a very similar setup. Your Tasker setup sounds like mine as well. How much battery life did you tune out of it? I got my N7 to last 3 weeks! That is assuming you don't touch it, of course, but awesome none the less. That plus a switched power source like you mention is the key to not killing your car, but keeping your tablet charged. I highly suggest running your own power line and switch it with a relay rather than piggybacking on a lower amperage existing ignition line.

I'll read over the whole thread more when I'm not at work, but if I can make a quick suggestion off the bat, if you pop the back cover off (easy to do with even a fingernail, start at the USB port), the USB/audio board is separate from the rest of the board and can be relocated as to not require you to run your USB cable out the side. I plan on cutting a hole in the back casing and accessing the USB port from there.

Also, a generic Metra mounting kit can be modified with the help of a dremel to build a great surround for the tablet to clean up the installed appearance. Let me see if I can find the pic I posted of a test fit.

Edit: Hmm... don't think I posted one yet and I don't see one on this computer (or phone). I'll try to remember later when I'm home.

Quote:
Originally Posted by Tang_and_Stang View Post
Seriously considering doing this. Do you have any regrets? What would you recommend for me?
Do you have wiring experience for some of the custom wiring you'll need? Do you have good Android experience for installing a custom ROM, optimizing and configuring the tablet for car use? Do you have a good engineering mind to help you figure out exactly how to piece it all together and mount it all up and make it work?

It doesn't seem that terribly hard to me, but compared to popping out the old head unit and sliding in a new one, it takes quite a bit more work. I may suggest that if you don't already know you're capable of building something like this, then you may not be. Not to discourage anyone at all, and there are certainly more simple ways to do it, but to do it right will take some work. On the other hand, if you do it right, it'll blow away every single head unit on the market by a long shot, and for the same or less cost. Just depends on your skill level at this kind of thing.
__________________
2006 Mustang GT
2008 BMW E92 335i - GONE!
2003 Mustang Cobra - GONE!
1997 Mustang GT - GONE!

Last edited by AJ06GT; 12-10-2013 at 04:25 PM.
AJ06GT is offline   Reply With Quote
Old 12-11-2013, 02:21 AM   #8
jimkaray
4th Gear Member
 
jimkaray's Avatar
 
Join Date: Aug 2007
Vehicle: 2005 Ford Mustang Coupe
Location: Stroudsburg, PA
Posts: 1,077
Default

This will be great if you can work out all the issues.
One small suggestion is to use a
to route the cable with out the mod to the center console.

Click the image to open in full size.
__________________
'05 4.0: G-Force T-5, MGW Shifter; VMP MAF/ CAI/93oct N2O Tun; CHE K-Brace & Torque Limiters, Rr Ctrl Arm; Shorty Headers; Centerforce Pressure Plate, McLeod DF clutch, Adj Slave Cyl; 8.8" 4:10's w/ T-Lok; Coast Alum D/S; FRPP Dual Ex; 18" Bullitts; CF Hood; Rr Louvers; SS Gen 1 Frt Cover. ZEX N2O - 100 shot bests: 1/4mi ET 13.495/MPH 103.95 (*only mods were VMP N2O tune & CAI; shorties w/ duals; t-lok).
jimkaray is offline   Reply With Quote
Old 12-11-2013, 02:36 PM   #9
gregthomas07gt
 
Join Date: Nov 2013
Vehicle: 2007 Mustang GT
Location: Kentucky
Posts: 31
Default

Quote:
Originally Posted by Tang_and_Stang View Post
Seriously considering doing this. Do you have any regrets? What would you recommend for me?
Absolutely no regrets! I love it! A couple of things I would recommend...

Use a larger power supply than what you think you'll need. I went with a 3amp supply which should have been enough but I ended up with a few problems remounting my flash drive on start up. Ive since switched to a 5amp supply and it's allot better.

Also, and I will be changing this on my setup... don't use the stereo wiring harness for any power supply connections. I've ended up with a some noise that I think is coming from the harness. I'm going to run some larger wires from the fuse box to help this out.
gregthomas07gt is offline   Reply With Quote
Old 12-11-2013, 03:19 PM   #10
gregthomas07gt
 
Join Date: Nov 2013
Vehicle: 2007 Mustang GT
Location: Kentucky
Posts: 31
Default

Quote:
Originally Posted by jimkaray View Post
This will be great if you can work out all the issues.
One small suggestion is to use a
to route the cable with out the mod to the center console.

Click the image to open in full size.
This will work but it will have to be modified. It doesn't have a y-cable so you'll have to cut the cable into and add wires for the power supply. I could not find a y-cable with an angled plug. I also put this in my wife's Escape and used the method someone posted above... moving the charging port/ribbon cable to the outside.
gregthomas07gt is offline   Reply With Quote
Old 12-11-2013, 03:19 PM
MustangForums
Ford Mustang




Paid Advertisement

 
 
 
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Forum Jump

Advertising

Featured Sponsors
Vendor Directory
New Sponsors
All times are GMT -5. The time now is 01:40 AM.

© Internet Brands, Inc.


This forum is owned and operated by Internet Brands, Inc., a Delaware corporation. It is not authorized or endorsed by the Ford Motor Company and is not affiliated with the Ford Motor Company or its related companies in any way. Ford® is a registered trademark of the Ford Motor Company
Emails Backup