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2008-2013 Cadillac CTS General Discussion Discussion, Successful navigation swap into a non Nav CTS in Cadillac CTS Second Generation Forum - 2008-2013; Okay, so from what I gather, I need: IGN, VSS, and ground wires for display. (I'm assuming IGN is the ...
  1. #196
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    Re: Successful navigation swap into a non Nav CTS

    Okay, so from what I gather, I need:

    IGN, VSS, and ground wires for display. (I'm assuming IGN is the power, not sure what VSS does)
    Voice guidance (shielded) to the amp.
    GPS antenna installed.

    And that should be it for me, correct? Can/Should I use shielded for all wires?

  2. #197
    rudeboyspi is offline Cadillac Owners Fanatic
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    Quote Originally Posted by zach2011 View Post
    Okay, so from what I gather, I need:

    IGN, VSS, and ground wires for display. (I'm assuming IGN is the power, not sure what VSS does)
    Voice guidance (shielded) to the amp.
    GPS antenna installed.

    And that should be it for me, correct? Can/Should I use shielded for all wires?
    Vss is the vehicle speed sensor. I didn't connect mine but everything works great. I never loss gps signals. They use for if you lost gps signal it will still guide you like you had signal

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    Re: Successful navigation swap into a non Nav CTS

    I see. Thanks for the info. I plan on ordering the parts today or tomorrow, setting it up in the dash myself and then taking it to a professional shop to have them do the wiring for me. I've never wired anything before so I wouldn't trust myself with it lol.

  4. #199
    rudeboyspi is offline Cadillac Owners Fanatic
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    Quote Originally Posted by zach2011 View Post
    I see. Thanks for the info. I plan on ordering the parts today or tomorrow, setting it up in the dash myself and then taking it to a professional shop to have them do the wiring for me. I've never wired anything before so I wouldn't trust myself with it lol.
    Good luck getting a shop to do it for you. When i start my project i bought everything and took it to a few shops and was told it wasn't possible. They all turned me down included the dealer. Then i saw that 1968vert did it and the i did it. I laugh at those dealers and stereo shops. I didn't pay anyone and it worked out great.

    ----------

    Good luck getting a shop to do it for you. When i start my project i bought everything and took it to a few shops and was told it wasn't possible. They all turned me down included the dealer. Then i saw that 1968vert did it and the i did it. I laugh at those dealers and stereo shops. I didn't pay anyone and it worked out great.

  5. #200
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    Re: Successful navigation swap into a non Nav CTS

    Yeah and that's awesome for you but like I said I have never wired anything before. None of the instructions in this thread made any sense to me lol. I know a few people who can look at the instructions here and know exactly what to do, but it might be a while before I would be able to get them to help.

    My brother used to co-own the shop I'd be taking it to, so there's a chance they'd try it for me even if it does cost a little.

  6. #201
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    Re: Successful navigation swap into a non Nav CTS

    any one know where I can get the PIN OUTS or know the part#'s for them? thanks for any help. already ordered the 4 harness amp and screen set up.

  7. #202
    rudeboyspi is offline Cadillac Owners Fanatic
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    Quote Originally Posted by bojangle View Post
    any one know where I can get the PIN OUTS or know the part#'s for them? thanks for any help. already ordered the 4 harness amp and screen set up.
    You need to get a gm Manuel for the car.

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    Re: Successful navigation swap into a non Nav CTS

    I have a manual for the car. I was wondering where you buy the parts at?

    Quote Originally Posted by rudeboyspi View Post
    You need to get a gm Manuel for the car.

  9. #204
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    Quote Originally Posted by bojangle View Post
    I have a manual for the car. I was wondering where you buy the parts at?

    I got my parts from ebay, i also get the unlocker on ebay also for the hdd. My parts came from one source. The car was total and they sell me all wiring and parts. Sorry i dont have part numbers. Lucky they gave me the wiring for free.

    ----------

    Quote Originally Posted by rudeboyspi View Post

    I got my parts from ebay, i also get the unlocker on ebay also for the hdd. My parts came from one source. The car was total and they sell me all wiring and parts. Sorry i dont have part numbers. Lucky they gave me the wiring for free.
    Hey bojangle did you have a mercedes benz, your name seems to ring a bell.

  10. #205
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    Re: Successful navigation swap into a non Nav CTS

    Quote Originally Posted by rudeboyspi View Post
    [/COLOR]

    Hey bojangle did you have a mercedes benz, your name seems to ring a bell.
    No sir. no mercedes. I just got my set up the screen, drive, and amp. I just need to find the amp harness' and the pins for the harness'.

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    Re: Successful navigation swap into a non Nav CTS

    Is there not any way to power the screen through a factory wiring harness? I know the CTS cars that have factory nav don't have it spliced and grounded this way, it all connects to a harness behind the radio. Just wondering if getting the whole harness will allow us to power the display without having to do any splicing.

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    1968vert is offline Cadillac Owners Member
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    Re: Successful navigation swap into a non Nav CTS

    Quote Originally Posted by zach2011 View Post
    Is there not any way to power the screen through a factory wiring harness? I know the CTS cars that have factory nav don't have it spliced and grounded this way, it all connects to a harness behind the radio. Just wondering if getting the whole harness will allow us to power the display without having to do any splicing.
    the cars that came from the factory with Nav had a different harness. There is no need to replace your harness with a Nav harness. By getting the required pigtails, It is much easier, IMO, to make a harness and tap into a couple of 12v ignition supply circuits. To swap harnesses, you most likely have to pull the dash out. If you can read a wire diagram and connector pinout, you should be able to do this swap.

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    Re: Successful navigation swap into a non Nav CTS

    Here's the thing that I am stuck on. This thread is 13 pages long as of now, but most of it seems to have been spent diagnosing the no sound issue and rudeboi's issue with the voice guidance wiring. There is no constructed step-by-step write up on what exactly to do just to get the nav itself working.

    I think it would be extremely beneficial to the forum to have a "stickied" thread on a how-to. Because right now there are so many instructions on many different things spread out over the 13 pages that at least to me it's very hard to tell what I need to do.

    What would help me personally is if you answered me this. I have the required nav parts, the premium sub is already there, let's say I have my old radio out and I'm ready to start the wiring. What wires do I run, from where to where?

    1.) What and where do I ground?
    2.) VSS wire goes from the engine compartment to .. ?
    3.) IGN wire goes from the 44-pin receiver cable to the display? You mentioned two power sources - do we need two?
    4.) Voice guidance wire goes from where to where?

    To me it seems like the radio and display hook up fine but the display needs IGN power to raise/lower, the radio needs a VSS signal for nav, and voice guidance needs to be wired from radio to amp. Am I missing anything? This is what I have gathered from reading the 13 pages over and over.

  14. #209
    1968vert is offline Cadillac Owners Member
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    Re: Successful navigation swap into a non Nav CTS

    You really need to get a gm service manual to fully grasp and understand the aspects of the swap. The manual has all the wire schematics and connector pinouts. I tried to post as much schematics and pinouts I could, but a manual is still a must. I agree, a step by step sticky would be great but with how long the swap took and trying to diagnose issues with the swap, it would've been very time consuming to document every step of the swap. I don't think anyone is willing to tear there swap out just to document everything. My swap isn't even completely done yet ( no voice guidance or chimes and turn
    signals). The thread was meant to help others attempt the swap. I have no problem helping out with questions regarding the swap. The swap really isn't that hard once you understand the stereos wiring.
    As far as your questions go, the ground goes to any clean metal (no paint) on the body. The vss goes to a connector that is atop the driver valve cover (once you get a manual you'll understand why). There is a wire in the connector that comes straight from the abs module. Rudeboi said that he didn't tap into a vss signal and his still worked. For the power, I followed the factory schematics, quick was seperate power sources. Maybe you can get away with just one, just make sure it IGN and not constant or your dispay will stay on when you power the car off. I can't help with the voice guidance yet. Hope that helps and good luck

  15. #210
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    Re: Successful navigation swap into a non Nav CTS

    That does help, thank you again. I bought a service manual per your recommendation, it's hard to sort through but I do have one now. I definitely understand not wanting to rip apart the install to document it as that could mess something up. I will do my best to do the install myself and when I do, I will document it to make a step by step to possibly merge with this thread. Haven't located the pinouts in my service manual (it is huge but not GM-made) so I am still searching.

    From what I gather, the nav head unit plugs up and powers on just fine, so the display is the only thing I have to supply IGN/ground to?

    Finally got the funds to purchase my set up so I will be doing that tomorrow but I'll be missing a couple things like the GPS antenna for right now. But that seems like an easy part to add in there later. I really just want the nav for the touchscreen interface. My Chrysler 300 had an 8.4" touchscreen whether or not you had nav and using this scroll knob to sort through my music is so annoying!

    One generic question I have about the wiring is, I've never soldered before so is there a way I can splice wires and attach them to the connectors without having to use a soldering iron? Such as crimping.

    The help is much much much appreciated. Hopefully you won't want to kill me after all my questions! lol

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