Radio Problems ????

My factory radio stopped working on my 1991 LX 5.0 convertible. I tried another used factory radio still no sound. On both units everything lights up, but no sound. I can even hear the rollers turning when I put in a cassette tape. All fuses at fuse box have been checked and are working. Awful strange that all 6 speakers do not work!!

I disconnected the amplfier that was behind the radio(it had 2 plugs), reconnected the radio plugs and still no sound!! I thought by disconnecting amplifier, radio should work, WRONG!!

I want to get an after market CD receiver. Will I still use the factory amplfier that I have or can I throw it out. (I don't know if its working or not).

Also, will the aftermarket radio connect to the amplifiers plugs that I disconnected or to the radio's plugs that connect to radio?

Will I have to do any cutting or does everything hook up to existing plugs?

Thanks

Larry

But, if I use a bypass harness on my new aftermarket receiver, will all of my 6 factory speakers work?

Does the bypass harness connect to the factory radio connections, (1 black, 1 grey), or to the amplifier connectors,(2), that I removed off the stock amplifier?

Thanks

Larry