Chevrolet Repair Questions? Ask a Mechanic for Answers ASAP
If the tweeters are working then the radio is not the problem. The tweeters and front door speakers are on the same circuit so if the tweeters are getting a signal then the other speakers should be getting a signal. Its not uncommon for the stock speakers to go bad. If you have a ohm meter (multimeter) then you can check the speakers. Measure across the 2 wires at the speakers with the speakers disconnected. You should measure about 4 ohms. If there is no reading or higher reading then 4, the speakers are bad. I would get a good set of after market speakers to replace them, they are about the same price as the stock ones from the dealer and they sound much better.