Probably a bad channel in the head unit that is ofcourse if the wiring is in good shape.
On 1984-1989 Corvette, the dash top grilles only housed speakers if the car was not fitted with Bose stereo, about 10% of production. TOM
In 1985 the best sports car available was the Porsche 944. It was more affordable and more desirable than the 85' Corvette which was the second most popular of the year A lot of car aficionados argue that the only real sports car in American is the Corvette. Sales of the Corvette were excellent in 1985 as they tend to be most years, if you are using sales to define "popular." This is a fascinating article on the subject of the Corvette and its enduring popularity: http://euroexpos.net/Corvette-Comparison-1985-European-Sports-Cars.html
Many amplifiers automatically disconnect the speakers when a headphone plug is inserted, unplug the headphones and the speakers should come back on.
There are a few reasons that would cause your 2002 Pontiac back speakers to only work sometimes. The most common cause is a loose or corroded ground wire.
General Motors, they have been the only one to produce the Corvette.
The only nickel I can think of in a Corvette, would be in the engine bearing inserts.
Lambo Aventador could kill the Corvette the Corvette only goes 330kph but Lambo Aventador goes 370.
Your speakers prolly broke. I had to replace mine after it was around 8 years old. It just happens. Take the door panels off, and it should only be a few bolts to take out the old speakers, then just cut the wires and splice them back together on your new speakers, set your speakers in the brackets and screw back in. And now you have speakers that work!! Hope that helps!
Only if it is moving................
Blown speakers, bad wiring or radio problems.
ohh wait a sec im sry its behind the stereo same place as the relay umm....the only fuses on an 85 corvette i know of are on the passanger side by the door hinges and there behind a peice of plastic which has slotted holes in it
there should be four speakers,two in back window of car,two in front on the side lower bottom front next to door panels.