Lately, when I shut the door and lock my TGP, the door buzzer will ding for a few seconds every now and then.  Basically, I'll walk by the car at certain times throughout the day and every few days it will be dinging until I cycle the locks a few times and/or open the doors.  Any ideas before I go tearing into the TGP's interior?  BTW, the previous owner had the car hardwired for a radar detector.  I'm very capable of fixing/finding the problem myself,  but was just wondering if other TGP owners have experiened this.

Rip that box out. It's under the passenger side of the dash.