TODAY is a Great Day to visit our Store and order the parts you need for your truck!
theres two systems the bose and non bose. i know my impala has one but its the bose my buddys tahoe has one and im unsure of the style
My '05 2500HD chimes through the left front speaker (why I asked earlier). Out of curiosity, I checked our '01 Tahoe to see about the chimes through the speakers, which it does not chime through the speakers.
Chimes from under the dash somewhere, definitely not from the LF speaker. Got the chimes for key in the ignition, door open and lights on without key in the ignition...
FWIW - Since you tested the radio otherwise and it worked, my suspicion would still be with the speakers and think you're on the right track to check out the speakers. Hopefully it may simply be a case where you can swap the Pontiac speakers (or other brand) and all is good.
I had an 05 that had intermitent radio isues. Would not work most of the time, but would once in a while. I found a mouse house under the under hood fuse box. fixed a couple wires, radio worked after that.
The sound system in the 2002 base model Silverado is very basic. If you have determined that the radio head unit is fine the only thing left to check is the speakers or wiring.