w123 wagon - heated rear window wiring - where is it?
 

My heated rear window does not work. I've traced the wiring thu to the rear doo. Under the carped panel, about 3" from the window bottom ledge, i've found a live supply on the right side and ground terminals on the left. What I can't find is the wires from the window to these terminals! - I removed the top piece of trim, the one that has the lock button pass thu it, and I can't see any wires. Can anyone shed any light on this - where should these wires be visible?

thanks
Steve