Tin/aluminium foil is a conductive metal and should never come near any type of electrical circuits. http:// www.shop.gmpartscheap.com/ index.php? i=2&type=parts&make=114&model= 372&year=2006&searchall=test ....... delete the spaces, I have never made a purchase from this site but hoefully it will help.

Thanks for the link. I search it and others and the lowest price is still over $300 ...dang it

Yes as far as I know the passengers side controls everything. What do you mean swap plugs?

I hadn't looked closely at the pic until just now. I was thinking if they made the passenger and driver side modules into one there would be two identical plugs, one for each side and you could switch them and at least get the one side working but that's not the case. Every single part inside that module is available at a radio shack and if you can figure out which piece is bad then you could cold solder a new one in. You may even be able to go to local computer repair places and see if they can fix it. All it is is a simple motherboard. A continuity test will show which piece is bad and it should be easy for they place to repair it. Shouldn't run much more than $50-$100 at the very most depending on where you live.

Get some universal seat heating controls from eBay or replace all the circuitry with a toggle switch and a indicator lamp. They draw around 8 amps.