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2004-2007 Cadillac CTS-V General Discussion Discussion, Last Word on DIC Retention with Aftermarket Head Unit in Cadillac CTS-V Series Forum - 2004 - 2007; Originally Posted by heavymetals As for the 06-07 steering wheel controls, I didn't know that, I thought there was no ...
  1. #16
    fweasel's Avatar
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    Re: Last Word on DIC Retention with Aftermarket Head Unit

    Quote Originally Posted by heavymetals View Post
    As for the 06-07 steering wheel controls, I didn't know that, I thought there was no difference.
    I only have first hand knowledge in my 07, but this is what I based that comment on and had thought the early years had a different set of controls. I believe initially there were wheel mounted cruise control buttons that were later replaced with audio buttons when the cruise was moved to the stalk.

  2. #17
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    Re: Last Word on DIC Retention with Aftermarket Head Unit

    Quote Originally Posted by heavymetals View Post
    BINGO.

    You get one or the other, not both.

    TECHII configures the radio for a CTS or V.

    CTS has the steering wheel volume control, V does not but different functions which need to be sent to other modules (ah so!) while volume control does not.

    You still need the base radio to verify some functions that are fault and drive function related (switch closure).

    ----------




    Also, there was no "Non Nav base unit " (that I know of) for the V. It may have been an option in a base CTS, but a necessity in the V for obvious reasons.

    OT, Now you know why GM deserved to go BK.
    I have a base CTS non-NAV Radio/CD coming in (they are cheap), and my dealer is friendly. We'll see how the TECHII reprogram goes, and what works and what doesn't. You don't need a "switch closure" to turn off the T/C, I verifed that tearing up some grass last night, but I'll need some open space to verify that you CANNOT turn on competition or totally disable stability control without the OK prompt response.

    The lady says that awful nav simply has to go; I did some bezel modifications to put a 7" touchscreen (Pioneer AVIC Z-130) in Me Precious (2003 anniversary C5 Corvette targa)

    Radio1.jpg

    and that's the way I want to go here. The buttons are SO ugly, programming is such a PITA, no bluetooth, etc. ad nauseam. Base Radio for DIC with a double DIN unit in place of the CD changer is the goal.

    repairedface.jpg

    (Pic is a woodgrain base V with such a mod, have straight black one coming in).

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    Re: Last Word on DIC Retention with Aftermarket Head Unit

    I put in the base Radio/CD, and the steering wheel buttons are not affected at all. Everything works. I can't tell if I can get into competition mode, but I can turn off the T/C, etc.

    Next is the programming (I just have a dead "Theftlock" radio right now), then we'll see what we have.

  4. #19
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    Re: Last Word on DIC Retention with Aftermarket Head Unit

    When you turn off TC, do you get a message on the DIC or just the dash light?

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    Re: Last Word on DIC Retention with Aftermarket Head Unit

    Dash light, and the DIC says "THEFTLOCK", I think that means it worked.

    Radio gets programmed tomorrow, I'll post ASAP.

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    Re: Last Word on DIC Retention with Aftermarket Head Unit

    Cool, thanks!

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    Re: Last Word on DIC Retention with Aftermarket Head Unit

    Everything works! Including the stability modes, steering wheel button does exactly what it should, and the radio does prompt!

    Ignore the bad paint on the CD, since that will be cut out, but I also have bad pixels on this thing, grrr...

    IMG_1383.jpg

    IMG_1384.jpg

    DIC is fully functional (nicer, actually, as the up/down arrow buttons step through the DIC, a lot easier than twiddling the buttons on the nav unit).

    The XM, however, is not being recognized. Dealer guy says that is not something that is programmed, I'll have to go back over my installation.

  8. #23
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    Re: Last Word on DIC Retention with Aftermarket Head Unit

    Congrats.

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    Re: Last Word on DIC Retention with Aftermarket Head Unit

    Thanks for the research/hands on job, JGeezer! Can't wait for future posts about the double din install.

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    Re: Last Word on DIC Retention with Aftermarket Head Unit

    Thanks for the update. Can't seem to find the time to mod my stock radio. It's been sitting here for weeks. Funny, my installer just called me wondering when I was bringing my car in for the install. This pile of parts is taunting me in my sleep.

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    Re: Last Word on DIC Retention with Aftermarket Head Unit

    Nice. This is what I want to do. Just wish there was a drop in double din install kit going this route. I know there's the kit without DIC.

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    Re: Last Word on DIC Retention with Aftermarket Head Unit

    XM has been resolved, working now. I'm a bit disappointed in the dealer, I had to do the research and then show them that "Digital Radio" has to be enabled in deep in the options with a TechII for the factory XM tuner. At least they corrected it for free.

    I will be putting the V head unit back in (hopefully it still will work, as I understand it the radio is programmed to the vehicle's VIN, so it still should work), and then going to the workbench to build my little monster. Still haven't chosen a head unit, we kinda like our iPhones (yeah, we're old people) and want a minimum cost unit that puts the phone apps up (esp. navigation) on a touchscreen.

    Also still have not decided on new head unit sound -> radio -> speakers, or the other way around.

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    Re: Last Word on DIC Retention with Aftermarket Head Unit

    BTW, there is this very useful thread I'm basing this work on: http://www.cadillacfaq.com/faq/answe...dic/index.html

  14. #29
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    Re: Last Word on DIC Retention with Aftermarket Head Unit

    Well that was a wasted afternoon. I installed my CTS base radio and took the car to the local GM dealer to have a P0420 code cleared, hopefully a catalytic convertor replaced under warranty, and get the radio programmed with my VIN. The service manager tried to tell me they had to pull the radio to program it and that it would cost $150. I laughed at him and said don't touch it. Later in the afternoon, they called me to tell me they weren't going to be able to look at my car today. Bang up job guys.

    So who else might have a TechII programmer? Is this a dealer only tool or might I be able to find an independent shop with one or even a GM based speed shop?

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    Re: Last Word on DIC Retention with Aftermarket Head Unit

    Quote Originally Posted by fweasel View Post
    Well that was a wasted afternoon. I installed my CTS base radio and took the car to the local GM dealer to have a P0420 code cleared, hopefully a catalytic convertor replaced under warranty, and get the radio programmed with my VIN. The service manager tried to tell me they had to pull the radio to program it and that it would cost $150. I laughed at him and said don't touch it. Later in the afternoon, they called me to tell me they weren't going to be able to look at my car today. Bang up job guys.

    So who else might have a TechII programmer? Is this a dealer only tool or might I be able to find an independent shop with one or even a GM based speed shop?
    Service Manager is full of malodorous fecal matter. The TechII plugs into the ODB port. They did charge me $100 for the reprogramming, though, so their quoted rate is only somewhat more ridiculous than mine was.

    The V's old NAV radio plugged right back in and started happily, so I can do my project on the bench and switch between them as needed. First step is a sidetrack though, getting a good screen into the base radio (I don't feel like paying for another radio to be programmed to the car).

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