[wildoaf]

While they have alot of stuff at

http://www.installer.com/

They don't have a kit for my 92 FWD deville.

Neither does Walmart of Pep Boys (at least in stock)

Neither does this place

http://www.audioonlineoutlet.com/cadillac.html

This one allegedly works

http://www.valcoelectronics.com/Merchant2/merchant.mv?Screen=PROD&Store_Code=VE&Product_Code=1503

These guys claim to have it too:

http://www.caraudioexpert.com/productView3.asp?productID=2092

I guess what I'm saying is there's no right answer and no end all, be all source for parts