I just bought a 71 GT in excellent condition a few weeks ago and need to replace a few things. Looking for ideas from some of the more seasoned owners. First, the seat and shoulder belts are separate and clunky. I'm looking to replace both with an inertia reel system. Any ideas where to get a good set at a great price? Second, the heater temp cable is broken in the engine compartment just before it attaches to the valve. OpelGTSource doesn't list the cable. Third, the turn signal lights on the dash work independently for the first blink and then both blink together. My first thought is to replace the blinker box behind the center panel. Is that the most likely cause of is the wiring all messed up? The radio in the dash doesn't work. Any suggestions on what brand and model of am/fm with hopefully a CD player fits in the dash? Thanks for the help. I bought a 73 GT new in 12/72 but Buick supported the model back then so I never had to do any of this kind of work.