RDKL,
I have a factory service DVD. and I've looked damn near everywhere
and I've still yet (but still looking) to find that darn CHIME Unit". I found references to it but not "it" specifically . what I have learned. there is only one chime. and its controlled by the OB Processor. and it decides what chimes and when and how,
the reason Im saying this. is think if the chime is disconnected all CHIMES will go! Seatbelt, Reverse sensor etc... or any variation. So the trick may be
finding away to trick the computer. via a diode or similar. but then you have no way of knowing the lights got left on. comprende?