Actually, a Rear Integration Module (RIM) is not required to make the heated seats work (although you do require switches and some miscellaneous wiring). If you don't have the RIM, the car won't cycle or shut down the heated seats if the battery or alternator voltage drops significantly. A RIM installed discretely would not function in the manner intended because it receives the message from another module (that you won't have) to command the RIM to shut the seats down.
I have personally connected heated seats without the heated seat status and inhibit signals attached (at the RIM) and everything functioned otherwise as designed.
As 1993 SLE says, you should only require a fairly heavy guage positive and ground. There would be no way for you to make the memory option work. This also integrates with all the other Bonneville body control modules.
StingRay Bike w/cards in the spokes, Weeeeeee!
Last edited by ddalder; 02-08-2009 at 10:39 AM.