This morning, I installed a set of replacement speakers for the worn out stock ones. They sound much better, but I noticed that with the balance and fade set dead center, there's a lot more volume coming out of the left side than the right.

Both of the right speakers are definitely working. I set the balance full right and faded full front and full rear to verify this.

I should mention my music source is an iPod using a bluetooth with an FM transmitter. I was playing early 90's pop music at the time. I didn't test any other genres of music to see if the left dominant volume was consistent.

Is this normal for OEM head units? It doesn't particularly bother me...I can almost see GM designing it that way.

 

The left speakers are each less than two feet from your head. Right speakers are 3-4ft. Of course the left side is going to sound louder without adjustment.

 

I wasn't sitting down in the car...I was walking around it and actually sticking my head next to the right side speakers. Output was still dominant on the left.

 

FM transmitters can often cause problems. Also your HU has some years on it. Capacitors on the circuit board are only good for about 5 years or so even unused.


J

 

I thought maybe the iPod was the culprit, so I tested an actual radio station. The results were identical to the iPod/transmitter setup.

I like your theory about worn capacitors in the HU. I didn't know that could happen.

Interestingly enough, the difference in output isn't as apparent with the volume cranked up a bit, which is probably how I'll be listening to music most of the time...going down the highway at 80+ with the t-tops off…just like God intended.

Thanks for the info!

 

I have a similar problem with my head unit on my '88 TA. I sometimes get a popping noise on the right side as well. How difficult is it to change out the capacitors? Any reference to previous threads, diagrams, or photos would be appreciated. Thanks.

 

I'd rather get my HU refurbed. I'm looking for local places that can do it. Unless you're a skilled electronics tech with your own soldering iron, you might want to do the same. I'd rather invest in getting it done right than my hamfisted attempt at it.