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Thread: '99 VW Gol mounting 7" tablet into head unit

  1. #1
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    '99 VW Gol mounting 7" tablet into head unit

    Hello.

    I was thinking I could get a little help here with a project I'm eager to start on.

    I have a 1999 VW Golf in which I want to replace my head unit with a 7" tablet. This is the tablet I'm thinking of: http://www.pointofview-online.com/sh...product_id=357

    It has GPS, 3G and a micro sd slot for storage, and it is cheap also, but runs smooth (I've tested it).

    Now the thing I need help with is power.

    * My previous head unit has a 16 pin connector, which I find hard to look up pinouts for. Does anyone have info on that? Seems to be a plug combining A and B standard plugs.

    * The tablet requires 5V and 2000 mA

    * Powering an amp to go with it (what kind of amp would cut it?)

    I do not want to use the cigarrette lighter to power the tablet since I would like to be able to use that to charge my phone or something else. Could I wire the old plug to power the tablet and amp?

  2. #2
    FLAC SNOtwistR's Avatar
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    For power you could use something like this http://www.jameco.com/webapp/wcs/sto...001_1953778_-1 It's putting out 1 more amp than your unit has. You can just cut the cable end from your power supply and wire to this. For the price and having it in an enclosure this is a great deal. I think you can also use the auto-shutdown controller available on the mp3car store with this unit. http://store.mp3car.com/Micro_Shutdo..._p/pwr-007.htm Hope this helps you out for power. SNO

  3. #3
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    Thanks for the reply. I was wondering if I can not just use the power that used to go to my radio to power the tablet and amp?

  4. #4
    Maximum Bitrate kegobeer's Avatar
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    Quote Originally Posted by SynGates View Post
    Thanks for the reply. I was wondering if I can not just use the power that used to go to my radio to power the tablet and amp?
    It's not recommended to power anything off the 12V radio line, because the wire gauge isn't designed to support that kind of current draw. You could probably get away with wiring the 12V-5V DC-DC to power your tablet, but I would buy a decent car amplifier and wire it according to standard amp directions, ie: put it in the trunk/seat/etc and run a fused 4GA wire to it directly from the battery, and run the ground to the chassis. Also, since the tablet does not have a remote turn on wire, you'll need to run a wire from the radio ignition wire to the amp, so that it turns on when you turn on the car.
    1999 Mercury Grand Marquis GS with: ASRock E350M1 w/4GB RAM, 80GB Intel SSD, Opus DCX3.120, Visteon HD Radio + HDR-USB, PL-18N wifi, OBDLink Scan Tool, BTA6210 BT, BU-353, Win 7 Ultimate, CF 4.0, Alpine MRP-F240 + MRP-T220, RF Punch 1572s, Kicker 8" Comp.

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    Okay, thats kind of what i was expecting. I Have a 12v switched wire and 12v battery wire. The switched is the one i want for the tablet, right?

    Also, if i run the amp directly to the battery, will it not draw from the battery when the ignition is off?

    Sent from my GT-I9100 using Tapatalk 2

  6. #6
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    Okay thanks for the reply.

    I've done a little research on the amplifier wiring. About powering the tablet, I'm wondering if the 12v sw wire will provide enough amps to power the tablet (2000ma) and send the switched signal to the amplifier. Will that be a problem? How many amps does this wire carry?

    If not, how can I wire the tablet to the battery so that it does not draw current from the battery when the ignition is off?

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