I have an 88 convertible. The audible warnings are very faint for the door ajar and left the lights on warnings. Are these sounds in a relay somewhere under the dash that I can repair/change out? TIA

 

I don't see why you'd want them louder, but the speaker is on the CPU's circuit board. The CPU is a black plastic box next to the interior fuse panel.

 

When you accidentally leave your lights on, then you'll know why! I can't hear the turn signals blinking, nor any of the other warning indicators except the loud buzzing when I got low on coolant one time.

Thanks for answering my question.