I got the interior trim posts and the wires leading up to the tabs you see on the outside of the trim...two problems.
One, the coiled section of wire is an FB feature...I'm not sure but the spades in the 1980 trim piece suggests to me that the wire was soldered onto the glass and that the female tab is part of that wire hanging off the glass for the SA's...the FB is turned around.
Second, the wiring. It is a single wire running underneath both trim pieces...both of those wires go into the main harness for the rear lights which is a 7/16" bundle of wires...I cut back the electric tape covering about two inches on that harness to expose more of the defroster wire going into that bundle and then made my cut there.
Question....do you even have the switch that for the defroster up front?
This car's exterior body is in really good shape...a shame it's in the salvage yard.