Im replacing the underdash wiring harness in my 87 CC Dually, this is my second time this week doing this as the first harness I had finished installing and was ready to start testing, and the engine compartment side of the wiring harness was a different style .. it's a good thing I bought two of them, one from a forum member here ... anyways, I took photos of everything that I thought would be tuff to remember, but this following item, im stuck on .... what is it and where's it go ?
Secondly, there's this wire comming off the back of the dash cluster, it ran down to the ashtray area, but was not hooked to
anything, could it be like a fiber optic for the ashtray?