ok so tore into it tonight
turns out that the dealership service monkeys had routed the wires wrong where they goto the seat controls and when the seat was all the way back, it was pinching the power wire that goes to the lumbar switch and that was taking everything out.
There was a recall awhile back and dad had taken it in and they replaced the seat skins. Thats when they screwed up the routing.
Dad just never put the seat ALL the way back so he hadnt shorted it, but I put it as far back as it will go and bzzt.
It had also busted some of the plastic around the switch panel by pulling the wires through it.
Oh well, a couple bits of heat shrink and routed the wires correctly and its fixed.
BUT then as I was tightening the inside front seat bolt - the head snapped off!!!
I wasnt gorilla tightening it, just good and tight.