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No sound 2020 Colorado WT 30,000 miles

6.2K views 20 replies 7 participants last post by  Koop  
Finally got the fix!!!!! I completely removed all traces of my powered subwoofer and scheduled an appt at a different dealership. First visit, and they said the radio was bad and it would be replaced under warranty. After installing new radio, same thing happened and no sound. So they look a little deeper and found that the right rear door speaker was grounding out somehow after it was replaced. I had replaced all 4 door speakers immediately after buying the new truck. The dealer said I still killed my radio warranty, but was kind enough to bill the diagnostic under warranty somehow. When they removed the speaker, the sound returned to the front dash tweeters, but no where else. I took it home and took the door panels off. The right rear speaker bracket adapter from Crutchfield was cracked, so that is why the wires were getting grounded. I epoxied the bracket over night, and then replaced in morning. Now I had sound on the dash and rear doors, but no front door. I removed the front door speaker, and the wire was bent at a 90 and cracked off the speaker post!! After replacing the wire I had sound on all 6 speakers with my old radio (they woundn't leave the new one in since I killed the warranty with the new speakers...dumb I know! So all of this boiled down to wiring issues and the system appears to only work if everything is connected properly (if one side is bad, you get no sound on the other, both have to be connected to complete the circuit)
So now problem number 2!! My driver side door will not open. I am 99% sure I reattached everything properly when replacing the door panel, you can hear the cable moving when you pull on the inside latch. It worked fine yesterday and this morning when i ran an errand, but then at the store I had to climb thru the passenger side when it first happened I tried the outside latch, locking and unlocking with the fob, the actual key and nothing inside or outside handle will not open the door?
You can't take the panel off with the door closed, so I can't get to the lock that way?
Anyone have any ideas??
How about if you remove the panel that the switches are in? Any help there?
I think doors nowadays are made in a way to defeat the ol' slim jim. You could always call and ask a lockout place.
Are you sure you can't get the panel off?