Where is factory keyless entry module/electronics located?

My keyless entry stopped working after awhile after wiring up the LS1 conversion, I have a new battery in the keychain and it works because i had it tested. Does anyone know where this module and/or wiring is located? Its on a 96 Z28 and I also wanted to know what it looks like and how to test it. Any help would be greatly appreciated. Thanks

I think this is more of what im looking for:

http://shbox.com/1/keyless_schematic.jpg

so where is the KEYLESS ENTRY RECIEVER?

I would like to know too...........

http://shbox.com/1/keyless_entry.jpg

There's the one for 94/95 cars.