Just got one at a junk yard off a 02 Durango. I already have the stock one which just has that clip thing and the 2 map lights but wanted to get the upgrade & just replace the DTE, Temp. My question is this possible and if so, guess I have to go back to the yard & get the rest of the wiring that goes from it to the fuse box as I read on here that even though there is the 'wiring' from the stock one, I still would need that in order for it to work or am I mistaken.
The one on my truck is not the long one like the one on this link but the mini (guess that's what you call it)

http://cgi.ebay.com/ebaymotors/02-04...-/170423550595