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Cadillac CTS First Generation Forum - 2003 - 2007 Discussion, NAV question in Cadillac CTS Coupe, Sport Sedan and Sport Wagon Forums; I'm getteng ready to install the NAV unit into a non-bose 03 CTS. I know there has been alot of ...
  1. #1
    CTSDreams's Avatar
    CTSDreams is offline Cadillac Owners Fanatic
    Automobile(s): CTS-V
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    NAV question

    I'm getteng ready to install the NAV unit into a non-bose 03 CTS. I know there has been alot of info back and forth on doing this, but I can't find what I am looking for. Can anyone give me a few short answers to these?

    1. Is it a plug and play swap except for the speed sense wire and gps module?
    2. Will any of my current features stop working? (I have cell phone and on star)
    3. Tomm had once said that he thought you could get the nav voice to work in a non-bose by setting up a small individual amp and speaker just for the Nav voice. Did anyone ever see if that would work?

    I realize without the Bose amp I will end up with the following:

    1. No Nav voice
    2. No voice recognition commands
    3. DSP controls in radio will not have any effect
    4. No auto volume control

    Did I miss anything else?

    I don't need a bunch of tech info at this time, just the short version for now. If anyone can help, I'd appreciate it.... Thanks

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  3. #2
    CTS V6 3.6 is offline Cadillac Owners Fanatic
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    Re: NAV question

    you have to get the correct pin that fits into the 8th hole in the harness, and fabricate it to fit in the hole so the speed sensor plugs in. The onstar will work fine, but the phone will not show the numbers on the screen as you say them. This is what I encountered on my install. :-)

  4. #3
    CTSDreams's Avatar
    CTSDreams is offline Cadillac Owners Fanatic
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    Cool Re: NAV question

    Quote Originally Posted by CTS V6 3.6
    you have to get the correct pin that fits into the 8th hole in the harness, and fabricate it to fit in the hole so the speed sensor plugs in. The onstar will work fine, but the phone will not show the numbers on the screen as you say them. This is what I encountered on my install. :-)
    So were you happy with the install and was it fairly easy to do?

  5. #4
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    -1- is offline Cadillac Owners Fanatic
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    Re: NAV question

    I'm in the process of installing the DVD Nav into a '03 CTS with Bose. Get Miscreant's detailed instructions his CTSowners.com site. Excellent detailed instructions on what's required to remove the radio and install the DVD Nav to include running the wire from the instrument cluster and installing the GPS antenna. The radio swap is plug & play minus running the VSS wire. Take your time and follow the instructions. I have the software ordered from Zenrin and the GPS antenna on order from GM-partsdirect. Miscreant completed the more complicated voice recognition update to his non-Bose system. No instruction on his site for this update. Once you install the DVD Nav you can check it out using the accessory ignition position versus starting the car. Starting the car will activate the "TheftLock" and you won't be able to use until you take to a GM dealer for the Tech2 "TheftLock" code clear. I checked the local Chevy dealer, they quoted me $40 versus the Cadillac dealer at $80.50. I read somewhere if you activate the "TheftLock" code you can temporaily clear by pulling the radio fuse with the igintion switch in the "accessory" position. Good luck!

  6. #5
    CTSDreams's Avatar
    CTSDreams is offline Cadillac Owners Fanatic
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    Re: NAV question

    Tks.... I'll keep my fingers crossed...

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