08 silverado harness ??

Discussion in 'Audio, Video & Gadget Tech' started by killerbanshee, Feb 7, 2011.

  1. killerbanshee

    killerbanshee New Member

    Ive done some searching on this and found some good info but wanted to clarify which adapter I can use to install an aftermarket head unit in my truck. I've noticed other people using the GMOS-01 adapter for 04-05 models and wanted to know if it will work for mine. It's an 08 silverado shorwide with onstar no bose. This is the one I'm looking at:
  2. thrasher

    thrasher New Member

    The easiest way to tell is to pull out the head unit & unplug it. Take pics of the plugs & then go to purchase the wiring adapter.
  3. killerbanshee

    killerbanshee New Member

    So no one knows if that adapter will fit the 08?

    TELORVEHC New Member

  5. randomsandwhich

    randomsandwhich New Member

    Yea, looks like it will work. I had run into problems with that brand though and ended up shipping it back to Crutchfield. I went with a more expensive one from pac audio, but you might have better luck then I did.

    Of course if you dont want onstar capability you van buy a much cheaper one that will keep everything working except the onstar.

    Just thought I would throw that out there.
  6. killerbanshee

    killerbanshee New Member

    I'm not too worried about onstar I never use it anyway. I do however want to keep the door chimes and the turn-off delay functioning. What problems did you have? Nice truck btw
  7. randomsandwhich

    randomsandwhich New Member

    My only issue was that when using onstar had extreme amounts of engine noise while using onstar. Other then that worked fine. But, if you dont want onstar there are modules that are half the cost that will keep everything else running.

    I use onstar, I get a reduced rate from insurance company so for a little extra overhead on my part its pretty much free .. I know people use that, I just had a bad experience. Could have just been a defective module from the factory. I had to go to local audio shop and buy the much much more expensive one but worked like a charm.
  8. thrasher

    thrasher New Member

    You might be able to find those adapters at Auto Zone. The local one here stocks them.
  9. Enkeiavalanche

    Enkeiavalanche Moderator

  10. killerbanshee

    killerbanshee New Member

    Checked autozone and no go. Pulled my radio and took pics of the plugs they dont match the ones on that harness. Metraonline shows one for $130 but my whole point was to try and get away from spending that on a harness. Looks like I might not have a choice. I'm not worried about the onstar I can lose it if need be, but I do want to keep the door chimes and radio turn off delay and I dont want to be dealing with trouble codes or anything.
  11. jake21

    jake21 New Member

    Dont use Metra/Axcess harnesses they are junk, Pac-Audio makes some of the best harnesses around. (I work at a car audio shop) Go the www.bestkits.com and search there and you will find the harness you need depending on if you have OnStar and/or Bose

    If you have any questions feel free to PM me and i can get you set on the right path without having to buy multiple harnesses

  12. killerbanshee

    killerbanshee New Member

    That's a good site but man they're expensive. I have already found the pac adapter for like 150 or something I just don't want to spend that much for just a harness. I hate the way they are doing these newer trucks...I've owned several chevy's and gmc's and never had to buy a 150 dollar harness just to add an aftermarket head unit. My last truck was an 06 gmc sierra decked out with the bose premium system and I was able to get a pac integration harness for around 20-30.
  13. randomsandwhich

    randomsandwhich New Member

    Not Much you can do. However IT IS possible to make an aftermarket radio work without the adapter. You will lose a lot of features, but it is possible. There have been a few people on here do it.

    You can buy adapters from other manufacturers at www.crutchfield.com. They sell PAC and other cheaper variances. Just one of those things you got to bite the bullet and forget about it. It's not just GM that requires adapters, almost all manufacturers now require some type of bypass. Head Unit manufacturers probably would integrate into their technology but then they would be limited to what they can be installed in.

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