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Thread: Using an OEM vehicle navigation screen

  1. #1
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    Question Using an OEM vehicle navigation screen

    Hi Everyone,

    I have a 2003 Toyota 4Runner with Navigation. I have been thinking of making a CarPC for some time now, and I was quite surprised to even find a website about it!

    I've decided to hack the "problem" of getting a PC into my truck one step at a time. The most obvious first step for me was the LCD/Display problem.

    My truck already has an LCD touchscreen built in, and I am wondering if anyone knows of a way for me to interface it with a PC. Has anyone ever done this with an OEM screen? I figure that if this is possible, it will save me a ton of money.

    Obviously the screen is already connected to an OEM "PC" that is driving its navigation, but I don't want to rip the whole interior apart to figure out how the navigation computer interfaces with the screen, if someone already might know!

    I would definitely appreciate any suggestions/advice you guys might have. If I can't go this route, I'm not yet sure how I am going to approach the problem. But, it seems a bit redundant to have 2 touchscreen LCDs in my dash!

    Oh, and I do not have a replaceable stereo head unit, if that makes a difference.

    Thanks!
    -Frank

  2. #2
    Maximum Bitrate deadweasel's Avatar
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    Welcome to the scene Frank!

    I have to say that I am not familiar with the screens they use in those vehicles, but I will bet that they use a LOT of surfacemount technology, including those damned embedded conductor ribbons to get the display info to the screen, which makes your hack job that much more of a pain, and could prevent you from using it altogether.

    Don't quote me on that, but there's a little voice in my head clamoring about it.

    Now if you will excuse me, I am off to obey the voice and retrieve some more pizza.
    The ALEXIS Project
    MP3---VIDEO---GPS---REARVIEW---OBD---SKINNING
    Color Coding :
    DONE / MOSTLY DONE / BASE FEATURES / WORKING CONCEPT / NO CODE COMPLETED

  3. #3
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    Thanks for the input deadweasel...

    I was actually thinking of asking the dealership if they have any info on it. I don't know if they'll be cooperative, but I guess we'll see. Maybe I can at least find out who manufactured the screen!

    -Frank

  4. #4
    Newbie Vladig's Avatar
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    Hey Mr Castulucci, I know of a lot of factory nav screens being converted to use a composite connection but I dont know how unfortunately, however call up these guy's they have done several of these type of convertions.

    ShowTime Audio
    773.973.7469
    Just tell em Vladi told u to talk to them.

  5. #5
    Newbie Vladig's Avatar
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    By the way here are some pics of a DVD/TV tuner into a Range Rover using the factory GPS screen :

    WARNING Huge pics

    pic 1

    pic 2

    pic 3

    pic 4

  6. #6
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    Wow thanks Vladi! 773 area code, huh? Not far from me, sounds like
    I'll definitely give them a call - I appreciate the info!

    -Frank

  7. #7
    Newbie Vladig's Avatar
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    I know I saw your location and sad humm instead of me trying to explain this why not send him to the people that actualy do this stuff

  8. #8
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    Just an update - I haven't had a chance to call yet (because I've had class late all week), but I am hoping to be able to call tomorrow night, if not definitely on thursday afternoon.

  9. #9
    Newbie Vladig's Avatar
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    I know I was there today getting some more pictures from them ( working on some VCd's for them so I also let em know that u might be calling and what basicly you are looking for.

  10. #10
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    Quick update - I discovered that the screen is manufactured by Fujitsu. I called Denso (the company whom I thought manufactured the screen), and they told me they don't make it, and in fact Fujitsu makes it.

    Doesn't seem like much of an accomplishment, but that took some digging! I'm going to try to find out more information.

    I just phoned Showtime Audio - I need to call back on Monday and talk to Jerry about the conversion. The woman on the phone said that offhand such a conversion would cost $2000 - wow that's a lot of money! But, I am going to call Monday and see what they say. I'm a electrical/computer engineering major, so maybe I can work something out myself? LOL, who knows.

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