keyless remote receiver 97 GTP

Gotta question 4 U guys... I have a 97 GTP, just purchased but the remotes haven't worked for about 1 year. I followed the instructions on this site to reprogram them, but nothing. (Yes, I did replace the remote battery :) Could it be the remote receiver module, or the BCM? Any help would be greatly appreciated. Also, where is the receiver located? Thanx