Alright, I took off the crash pad today and some other trim. Here is the heater/AC/blower unit that has to be removed, and replaced or repaired:
This is just a view looking inside from the passengers door. I hope I can remember where the three long screws and one short one came from that bolt on the trim!:
My acoustical mat is visible there in the middle. Also, I am in the process of selecting a new audio system. I have been looking at a Memphis audio set up for about $1000 including 4 speakers, 2 amps, and a sub. I will also be looking at a new headunit.