Not really who ever had it before you could have changed the wires, but it sounds like your speakers are bad.
SOURCE: brake light on 2001 chevy blazer LT 2wd
When my blazer did this they had to replace part of the wiring harness in the steering wheel. It took forever for them to get the parts because we live in nowhereville, but once it was in it works again and no problems. I had to take it to the actual chevy dealer because none of the other places had a clue. good luck.
SOURCE: rear door speakers don't work w/ aftermarket radio in 94 suburban
You need to attach the blue wire on the stereo harness to the blue and white wire on the car adapter harness. they installed a small amplifier to power the rear door speakers and unless you connect those two wires then the speakers will not work.
SOURCE: 2004 CHEVY BLAZER REAR WINDOW LATCH
Any solution for this? I have the same problem on my 1996 s10 blazer.
SOURCE: 94 chevy s10 blazer power windows not working
I had the same problem - driver side fine, passenger side front not working/slow or the back seat. You need to replace the window motor on the passenger side. Yes, there are two motors. It's pretty simple if you are handy with some tools. The hardest part is getting the 4 mounts that hold the window motor to the door off. The are factory riveted to the door, so I had to grind the outsides off and tap them out. Just watch the spring lever that holds the window bar for going up and down. I didn't pay attention and it snapped back - nearly broke my thumb.
Dani-Lynn
SOURCE: vacuum hose diagram for a 2001 Chevy Blazer
look on google i can fing everything there if you want email me with your emailaddres i will try to find it for you
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looked at the back of the radio all wires are hooked up still no sound in the two back speakers , no steering wheel control for radio. maybe its just burnt out. should the harness be hard wire from factory
for the two back speakers
rear speaker not working
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