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Thread: Onstar hack 2001 Yukon XL

  1. 03-21-2005, 06:16 PM #21
    Saab9-5
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    Unless you've got a MAX232 and some miscellaneous parts lying around at home - and some of us actually do - then you are going to need to buy a serial TTL to RS232 level converter.
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  2. 03-21-2005, 06:27 PM #22
    EsKALad
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    how much are they?
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  3. 03-21-2005, 06:58 PM #23
    Saab9-5
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    The one used in the original hack is available at: http://www.digitalnemesis.com/catalogue/default.htm for $25 Australian dollars. But you can get one in the States at http://www.piclist.com/techref/io/serial/RCL1.htm for $17 + $5 s/h.
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  4. 03-21-2005, 09:55 PM #24
    TaylorMade
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    hey Eskalad, (and any other Suburban, Yukon, Tahoe, Escalade owners) do you use the BU 303 inside or outside the vehicle?
    2008 Ford Expedition EL Ltd

    Carputer yanked from the Jeep and Denali and waiting to be installed in the Ford.
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  5. 03-22-2005, 06:51 PM #25
    bosskong
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    If you can build a simple circuit (sorry, I didn't take notes when I did it or I'd share them), you don't have to spend $17. All you need is a Maxim MAX232 chip and 4 capacitors. The capacitors cost maybe 10 cents each and you might be able to get a free sample of the Maxim chip.

    The Onstar hack is cool, but if you're happy with your gps mouse, I wouldn't waste my time...
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  6. 11-07-2005, 09:33 PM #26
    EsKALad
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    sorry for bumping an old thread guys. im finally gonna try this and see how it is. for those of you who have done the mod....do you have recconect the power to the onstar? do i have to plug the harnesses back in for it to work? or will it be powered off of my serial port?
    i got dat ***** sittin on 22s! SUPERMAN EDITION!
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  7. 11-30-2005, 03:06 AM #27
    EsKALad
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    OK GUYS CHECK IT OUT. i did the hack and it works sooooooo sweet. iguidance loves the onstar hack. i currently use hibernation when going in and out of car shutdown method. if i do a reset or a fresh startup the onstar acts like a mouse on the com port and drives the computer crazy. i have to unplug it and plug it back in. wtf? is this fixable?
    i got dat ***** sittin on 22s! SUPERMAN EDITION!
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  8. 11-30-2005, 05:22 PM #28
    MobiTekLink
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    I think a saw a similar issue with that,,,, its' actually a Windows problem that I think you have to delete the mouse from the hardware profile....
    Try doing this in safe mode,,,, if that doesn't work do a somewhere on Google
    08 Lincoln Navigator www.mobiteklink.com
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  9. 11-30-2005, 05:28 PM #29
    sfay93
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    Try this. Registry editor.

    HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Servic es\sermouse

    change the value of "Start" to 4
    7" Lilli TS, Soyo K7VME, Semperon 2200, 160GB Maxtor, 512mb PC3200, Deluo GPS, Panasonic Slim DVD/CD RW, Linksys WMP545G , Opus 150w, XMDirect, XP Pro, FP, IG [XXXXXXXXX-] 90%
    ATVMS.com
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  10. 01-05-2006, 06:11 PM #30
    jwhitley
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    So if I just bought a 2003 Avalanche, then it's got the new Onstar hardware (integrated phone and GPS), and I'm SOL? Or is there another hack for the combined Onstar?

    Also, someone said you could tell if you have the new version because you would have two Onstar boxes. Are they easy to find? I would assume one would be in the same place as the box described in this hack? Would the other be close by?

    Also, I believe my Avalanche is XM-ready as well. I'm going to hook XM up to my carPC, but then I heard the Onstar antenna also has an XM antenna built in. Any truth to that? If so, (once again), am I shot at using the Onstar antennas because I have a newer Onstar version?

    Thanks in advance for your help.
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