Need Non-Bose Radio Wiring Diagram for 09 Silverado

Discussion in 'Audio, Video & Gadget Tech' started by 98Hotrod98, Jul 1, 2011.

  1. 98Hotrod98

    98Hotrod98 New Member

    I have been looking everywhere for a diagram of the OEM connectors behind the factory head unit. I have an aftermarket radio and i'm not spending the $150 bucks on the onstar/chime adapter which is apparently all they make for my year model. SO i'm gona just cut the oem plugs and splice em together with some good connectors.

    Anybody have the factory wiring diagram for the 2 factory plugs?
  2. Enkeiavalanche

    Enkeiavalanche Moderator

    Check metraonline.com But do NOT cut the factory wires....
  3. 98Hotrod98

    98Hotrod98 New Member

    metra doesnt seem to make one without the $100 adapter. All of our local shops use metra, and i've looked at em with no luck.

    why not cut factory wires, its the way it used to be done back in the day before harnesses.
  4. redneck70

    redneck70 New Member

    Don't have a diagram but here's what they all do.

    Radio Battery Constant 12v+ Wire: Red/White
    Radio Accessory Switched 12v+ Wire: Dark Green
    Radio Ground Wire: Black
    Stereo Dimmer Wire: Yellow

    Left Front Speaker Positive Wire (+): Tan
    Left Front Speaker Negative Wire (-): Gray
    Right Front Speaker Positive Wire (+): Light Green
    Right Front Speaker Negative Wire (-): Dark Green

    Left Rear Speaker Positive Wire (+): Brown
    Left Rear Speaker Negative Wire (-): Yellow
    Right Rear Speaker Positive Wire (+): Dark Blue
    Right Rear Speaker Negative Wire (-): Light Blue
  5. 98Hotrod98

    98Hotrod98 New Member

    Thanks for you help,
    I was able to locate a harness at cartoys.com that does exactly what i need. I'll post of the model number when i get back from there incase anybody else needs it.
  6. lquattro04

    lquattro04 Member

    i wouldnt cut the wires. as soon as you do that you void any warranty you have left on everything electrical. Plus in the long run, the $100 you spend will be worth way more than the headaches from a head unit just dangling in your truck because you cant figure out which wire is correctly connected.
  7. Crawdaddy

    Crawdaddy Moderator

    Whatever you do, do NOT cut the factory wiring off. Please... There's reasons that the module exists. With these newer trucks all the wires are not directly derived from wires in the dash due to the advent of computers and CANbus wiring. You might be able to scrounge up the wires from various parts of the truck, but do yourself and future owner of the vehicle a favor and get the module. You'll also keep the door chimes and other critical alert and safety chimes, which you'd lose otherwise.
  8. 98Hotrod98

    98Hotrod98 New Member

    Thanks for all your help.
    I ended up not going with that expensive adapter and instead went with a Metra 70-2105 harness for 2006 and Up Impala. Fits the OEM harness and only cost $15. Of course now i don't have the annoying door chime, and the onstar which i never used, but at least if i ever wanted it in the future i could also add the adapter.

    I still soldered and shrink wrapped all my connections, just didn't have to cut the OEM harness.
  9. Chevy Newby

    Chevy Newby New Member

    thank God you didnt cut the wires, there are aways around situations like that and what you did will work fine. just dont cut the wires. And the wiring color code that the member gave earlier is accurate as far as I been doing mobile audio for the past 15 years. GM has not changed there color code in decades. Hope the new radio works out for you. What are you putting in there anyway?
  10. 98Hotrod98

    98Hotrod98 New Member

    Pioneer AVH-P3300BT.

    Install went well, only issue i ended up having was finding a "safe" 12v accessories source inside the firewall, But i ended up finding one on the power block near my brake pedal. Apparently GM leaves a 15amp and 30amp accessory circuit there with an ignition on/off circuit.

    I also installed a hidden ground switch so i can bypass the dvd player parking brake crap.
  11. Crawdaddy

    Crawdaddy Moderator

    Have you tested the ground/bypass switch you installed. A while ago, I heard a rumor that Pioneer had set up all their new dvd/gps radios to also use the GPS data to determine if you were moving or not in addition to the parking brake switch circuit to keep people from just putting a switch inline. I can't verify one way or the other because I didn't get a nav/dvd unit.
  12. 98Hotrod98

    98Hotrod98 New Member

    Yes i've tested and used it for dvd. I didn't purchase the Nav add-on though.

    But the guy i got the idea from had the nav package installed and it seemed to work for him.

    I would be shocked if pioneer tried to do that, as they are only legally obligated to put some basic mechanism inline to prevent it. Seems it would kill there market if they make it too difficult. I mean technically it only applies if your on the public roads, govt cant keep you from doing it on personal property, hence the reason the bypass itself is not illegal.
  13. WyrTwister

    WyrTwister New Member

    I just ordered the same Metra 70-2105 harness for a 2008 Silverado WT . Hope it works on mine , too . :)

    Thanks ,
    Wyr
    God bless
  14. WyrTwister

    WyrTwister New Member

    I bought a head end unit off of EBay & hope it arrives today . I plan to install it on a 2008 Silverado . It has XM & On Star , but no Boise .

    Glad to hear the Metra 70-2105 worked for you . :) That is the connector I ordered . So , hopefully , it will work for me , too ?

    I have also ordered a Zoom

    [​IMG] [​IMG] [​IMG]
    [h=1]Metra 95-2001 install kit that shows to have side brackets for the HU and a trim ring .[/h]
    Did you need those items , or were the parts that came with your new HU sufficent for you to install it , without an install kit ?

    I realize I will loose On Star & XM , but I do not subscribe to them , anyway . And looseing the chimes is not that important to me , either .

    Thanks to uou and the forum for the information .

    God bless
    Wyr
  15. dboothieb

    dboothieb New Member

    Hi, so I'm a backyard mechanic new to the internet forum thing and I cut the wires for my stock harness. Wish now I had read this prior but I've never used a harness before and didn't think that there would be a problem. After hooking up the deck it had no power, if someone could help it would be greatly appreciated. There are three wires not in use on the truck side and five deck side, I don't believe the problem is deck side but I could be wrong. Thank you in advance to any advice.
  16. WyrTwister

    WyrTwister New Member


    What make and model ? Depending on how new it is , you may have lost the warning chimes in the car .

    Best I remember , black is chassis ground - . If necessary , run a black to a grounded metal part of the car .

    Red and yellow are + . I think yellow is hot all the time & red is got when the ignition switch is on .

    If necessary , run a yellow to the fuse block & try to find a spare fuse circuit .

    If necessary , run a red to something that is hot when you turn the ignition switch on .

    Did you save the connectors you cut off ? Replacements can be ordered from Scosche or Metra .

    God bless
    Wyr
  17. pholt34

    pholt34 New Member

    okay guys I know this is a little off topic here, but I've been reading and dont really see an answer to my question. I have a GM part number 2586 5029with a cat button on it and I'm trying to get it wired up in a Dodge Dakota. Just because I had the radio laying around it came out of my wifes truck. The dark green doesn't seem to be powering up the accessory or the key hot, whatever you want to call it. I've read about the radio having to be compatible with the vehicle's VIN. Is there any way to redneck bypass this so I can get the radio working in my old dakota? any help I can get would be greatly appreciated, and thanks in advance!

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