by twenning » February 6th, 2014, 10:57 am
After installing on my 2008 Silverado I could barely hear the sound. I was very disappointed. This was even after following the directions to turn up the volume. I could see the volume display on the radio go up but I only had sound coming from my tweeters on the windshield column and I could only here that if I got very close. After further checking, I found that neither of my door speakers were working. I had previously noticed the sound coming on and off to the right, but didn't think much about it. The on star only uses the front speaker, so nothing came from the rear. I turned the fader from balanced to front only, and I had no sound. Then from left to right.
I replaced both door speakers, and now it works great. Actually better than expected. The incoming phone numbers are even displayed on my dash in the on board display.
Apparently the door speakers on the Silverados are a problem. The are a unique OEM speaker, but a 6.5" speaker works fine fastened right to the door.