Jump to content
  • Sign up for FREE! Become a GM-Trucks.com Member Today!

    In 20 seconds you can become part of the worlds largest and oldest community discussing General Motors, Chevrolet and GMC branded pickups, crossovers, and SUVs. From buying research to owner support, join 1.5 MILLION GM Truck Enthusiasts every month who use GM-Trucks.com as a daily part of their ownership experience. 

Swapping aftermarket head unit

Recommended Posts

2007 Chevy Silverado 1500 Extended Cab V8 5.3L


Previous owner had put in an aftermarket stereo, I don't like it and bought a new one. Wiring harness was already cut/spliced so I just cut everything I needed to take off the aftermarket head unit. Now I'm having trouble finding a wiring schematic that seems to match what I'm looking at. Please help, head hurts. Ugh.


If I'm not mistaken, this does not have Bose speakers or the premium sound system, I haven't looked to see if there's an amp or not. I do have OnStar. I would also like to have the turn signal noise and door chime back, OnStar is not a big deal. These have been missing ever since I've had the truck.


I believe I see the door speaker wires, there are 4 pairs of wires braided together.


Green/Light green

Blue/light blue

Tan/Light brown



Next which I thought was the power and ground, they are a heavier gauge.

Red w/ white stripe



Now are two wires that are just hanging freely by themselves.

Yellow and green


Next are two bundles of wires wrapped together with blue shielding tape?


One bundle consists of a blue wire and a grey w/ black stripe.


Second bundle consists of a light brown wire that looks like it has a faded stripe, green w/ white, brown w/white, orange w/ white and a bare wire.


Lastly is the radio antenna, I think I got this one.


If anyone could please shed some light upon me I would be forever grateful. 


Also, beneath the head unit, they had a light controller there that didn't even work so I took it off and now just have an empty space. What is the connection for that I found behind it?…





Edited by Matt Thompson
Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Create New...

Important Information

By using this site, you agree to our Terms of Use.