Hello and welcome to Just Answer. I will try and assist you with your question.
Radios with no sound are tough to diagnose and most of the time could only be a radio problem. These cars came with two radios, one with an amp and one without.
If you check in the under hood fuse box there should be a slot 24 that is labeled Power Amp. There may or may not be a fuse there. Let me know and if there is then is the fuse good?
There is a fuse in slot 24, it's marked power...I took it out and checked with a meter and it checked ok. There is also a fuse in slot 25 marked power amp...I checked it as well, and it also checked ok.
OK well this is what I have for Diagnostics for no sound.
It does not even cover the Amps so I will Opt Out and see if someone else might be able to assist you.
I followed the flow chart procedures and everything seems to check out ok. Where is the external amplifier located? If it is ok, it would seem I have no choice but to buy a new radio.
My info is so bad It does not tell me the location.
The problem with buying a new radio is that it could be the amp that is bad.
I will opt out to see if someone else can help.
I just checked another source and the info is about the same.
I did find that the Amp should be in the right rear of the trunk.
Well, I'll check that out tomorrow. Thanks so much. If the amp is there and good, I'll go with the new radio, if I find out the amp is bad, then ill just get a new one.