You can use this Sierra stereo wiring diagram to install just about anything in your truck. I blew the radio fuse first attempt any speaker fuses I dont know about? We suggest you take your car to an experienced audio installer and have them troubleshoot your problem. Sorry vrchevy3 just want to ask instead of new thread. I think the electrical system was extensively upgraded starting in '03, so the 2003 schematics won't work for my '02 truck. Because of this similarity, the Sierra came with two versions in this early model.
If this is your ploblem let me know because i might be able to walk you though it. For switched power, you need to tap into the steering column and go off the ignition switch in your Sierra. If you are pleased with some pictures we provide, please visit us this website again, do not forget to share to social media you have. Thanks for any and all help. When you initiate a start, a series of relays turn on in the powerbox. All your tail light wires should tie into the plastic protective tubing that then goes under the truck.
You should be able to identify the correct relay from the diagrams. Posted on Jan 22, 2009 I think I would try a new ignition switch or at least unplug the switch after the engine is running and see if it stops running. The wiring harness includes three dark green wires solid green, no stripe : one is 12V+ switched by ignition , one is for a speaker, but I'm not sure what the third one is for. When I put the truck in reverse, the camera popped up on the screen. That's the easiest place to access them. I'll post a follow up when I get it all working correctly. Follow that plastic tubing and pick a spot to tie in your camera to your reverse light wire using the correct color wire Or if you want to do it the simple way, just splice into the reverse light power wire an inch off of the light housing instead of following the plastic tubing under the truck.
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 As you notice the speaker wires remain largely unchanged. You can research and get diagrams, videos, and photos on the Web. Your Sierra stereo ground wire is also brown now instead of the black, so if you pull out your stereo and see these primary speaker wires instead, use this guide. Relays are not terribly expensive. Failure to install the right bypass could cause problems like your steering wheel Sierra stereo controls may not work, or the volume may be off. I looked at many diagrams and none have matched up fully with the wiring in my truck.
I did not use any relays or anything, just spliced and went on about my business. Most aftermarket Sierra stereos will require a new install kit or stereo mounting kit. This Sierra speaker is powered by the Sierra amplifier, so make sure to bypass this when upgrading your Sierra stereo. This way, I would only have to run the chord that connects the camera to the head unit. Have any questions about this Sierra Stereo Wiring guide? I then ran the chord that connects the camera to the head unit.
If the ignition relay is melted inside itself, it will not break connection. One more question, though: Will it hurt anything to use the same reverse light to connect the reverse wire and the power wire for the camera? I'm not too sure about the power loss you might have. You can do this by using an and making sure all of your fuses are not blown. However there is a change to the Sierra stereo wiring diagram when it comes to the Sierra antenna trigger wire. I ordered an aftermarket backup camera same I had in my Tundra, so easy install , but I am having trouble finding out where the reverse wire is so I can tap into it for the camera to power on when put into reverse. If you wish to get another reference about 2008 Gmc Sierra Wiring Diagram Please see more wiring amber you can see it in the gallery below. Just be specific and enter the year, make, and model and ask for a wiring diagram or fusebox or powerbox for that truck.
Then the speaker wires are all the same as the other diagrams I looked at: yellow and brown, light blue and dark blue, light green and dark green, tan and gray , but none have the thin orange wire. Your best bet would be to remove the tail light and check the color of the power wire coming from the reverse light housing Mine was green. Thanks for visiting our website to locate 2008 Gmc Sierra Wiring Diagram. When I put it in any other gear, the head unit screen went to normal. Radio 12v orange + radio harness Radio Ground black - radio harness Radio Ignition dk.
Many good image inspirations on our internet are the most effective image selection for 2008 Gmc Sierra Wiring Diagram. Another popular upgrade is to take the navigation system from a Acadia or Saturn Outlook, as they share the same stereo connectors. I've seen diagrams showing some Silverados having a dk. You can mount the new Sierra stereo using the old factory mount rails and hardware. I then ran the reverse trigger wire up into the footer of the front passenger side and spliced it into the reverse trigger wire it was easy to locate this way.