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Thread: VW Golf "Nexus 7 HU" Install

  1. #1
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    VW Golf "Nexus 7 HU" Install

    Hey guys, been a long time reader but haven't had a chance to join. I just recently finished installing a Nexus 7 tablet into the dash of my car. Over all it wasn't that difficult of an install, however it did take time like anything worthwhile.

    Here is the install..
    Finally got to taking apart my dash and replacing my MFD2 with a Nexus 7. Lots of fabrication but it went together smoother than I anticipated. It has been a couple days with playing with it in the car and I'm very happy with it.













    got the back plate covered in suede so it looks nice with the tablet out of the car.



    The wiring is actually quite simple "idea wise". I got a Logitech Bluetooth Receiver with RCA outs designed for "home use". I found a car charger with an appropriate adapter at Radioshack that meets the voltage and amperage requirements. I wired it in to a 12 volt ignition on source with an (add a fuse). I buttoned up everything and it ended up working out perfectly.

    I decided on not running a power wire for the tablet. There was a few reasons for this. As of now the Nexus 7 does not have a compatible car adapter, many USB outlets trickle charge it and end up displaying "discharging". You can short the usb outlet and end up displaying "charging". However I wasn't willing to go through with the hassle. Not to mention different USB outlets have different charging rates depending on the length of the USB cable. The idea is to keep it as short as possible.

    Regardless I think the tablet has plenty of battery life for my day to day use. For extended road trips I can easily remove the tablet and charge it in the car with a power inverter. But I'm sure an easy off the shelf option will be available soon. There are rumors of a dock connector possibility for the tablet so I will keep my fingers crossed for that.

    As of now I can get the tablet to emulate as if it is getting an ignition on source. This is done by the android app tasker. I Have "tasker" set to turn on display when Bluetooth is paired. Since I wired the bluetooth module into a 12 volt accesory outlet it turns on and off with the car. Then I set "tasker" to turn off the display 7 seconds after a bluetooth signal is lost. It ends up working out perfectly.

    If you guys have any questions feel free to post them up. I will try my best to answer them.

  2. #2
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    how easily is the tab removed? How is the trim panel you made held on?

    Fabrication is my biggest hold up.

  3. #3
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    have you thought of making your own wire and tap into an acc line? i get my connectors from radioshack and figure out the power requirements from the wall plug.

  4. #4
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    Quote Originally Posted by khisanthax View Post
    have you thought of making your own wire and tap into an acc line? i get my connectors from radioshack and figure out the power requirements from the wall plug.
    that is a good idea. However I ran into this a while back. Makes things a bit more confusing.

    http://forum.xda-developers.com/show....php?t=1823377

  5. #5
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    This looks great! I'm doing the same type of thing but I'd like it to be permanently mounted so ill need it to have power. I've heard the tablet is picky with USB cords so I was wondering if you had any ideas about the amp and voltage requirements. Thanks!

  6. #6
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    Very nice install.

    As far as the charger goes, all you need is a fairly high amperage car charger (2a+) and short the data pins for the tablet to read "ac charging." This is what I use for my Nexus and it keeps a charge perfectly, even while using Nav and streaming Spotify.

  7. #7
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    Quote Originally Posted by drai23 View Post
    This looks great! I'm doing the same type of thing but I'd like it to be permanently mounted so ill need it to have power. I've heard the tablet is picky with USB cords so I was wondering if you had any ideas about the amp and voltage requirements. Thanks!
    Thanks you!
    It is very easily removable. I have removed the mount from the car again in order to incorporate charging and reverse mount some magnets to it. I was using velcro and did not like the look of it with the tablet removed. Plus it was putting a lot of strain on the suede backing each time I took the tablet out.

    Quote Originally Posted by Framinator View Post
    Very nice install.

    As far as the charger goes, all you need is a fairly high amperage car charger (2a+) and short the data pins for the tablet to read "ac charging." This is what I use for my Nexus and it keeps a charge perfectly, even while using Nav and streaming Spotify.
    Thanks! I have the mount removed from the car. Would you describe how you shorted the data pins? Also do you remember if there were any micro usb inputs at radio shack that had an L fitting. I don't have the clearance to put a full size connector on mine.

  8. #8
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    I simply stripped the black insolation off a section of my micro usb cable, cut and stripped the green and white wires, and twisted them together so that they make a short circuit to the tablet. Leave the red and black cables alone. Tape it up and you are done.

    For the micro usb cable, I had the same clearance issues, however I just used the cable I had and cut all of the black insolation away from the connector and made my own 90 connector. This worked well for me as it is a smaller adapter than I could have purchased. If you are taking the tablet in and out often I would just buy a right angle cable, Radioshack probably has them, Amazon for sure does.
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  9. #9
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    What do you do for FM radio

    Sent from my HTC One X using Tapatalk 2

  10. #10
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    Quote Originally Posted by Framinator View Post
    I simply stripped the black insolation off a section of my micro usb cable, cut and stripped the green and white wires, and twisted them together so that they make a short circuit to the tablet. Leave the red and black cables alone. Tape it up and you are done.

    For the micro usb cable, I had the same clearance issues, however I just used the cable I had and cut all of the black insolation away from the connector and made my own 90 connector. This worked well for me as it is a smaller adapter than I could have purchased. If you are taking the tablet in and out often I would just buy a right angle cable, Radioshack probably has them, Amazon for sure does.
    very cool, thank you!

    Quote Originally Posted by krisperry View Post
    What do you do for FM radio

    Sent from my HTC One X using Tapatalk 2
    there is only one Radio station worth listening to in Houston, and the rare time that I do listen to it there is an app for it.

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