Can anyone who has first hand expoerience with this 99 TL Bose system tell me the best way to diagnose these 3 problems:

1. Passenger side rear door speaker is not working at all. Was working sometimes before but now not at all. Other 3 and sub work fine..

2. FM reception is very poor. Not sure where the acual antenna is located,
I's not in the windshield or en external pod like the newer cars. Is this just the nature of the Bose radio?

3. The operation of the keless-remote is is wacky. Sometimes will not work wile stanfing right next to the car, sometimes works after "clicking the controll several times, and sometimes works from 200-300 feet away???
What is up with that???

I guess the second and third problems could be diagnosed if I knew where the antennas for the radio and the alarm were located in the chassis. and the first could be diagnosed if I knew where the wire from the rear passenger door speaker are run.

Thanks in advance for any help.....

**99 TL Nighthawk Black w/bose and NAVI, 130,000 on original transmisstion!