I have the Sports Imports LTD seat heaters purchased from the group buy a couple years ago. I had Cleaveland install them when they made my seats. When I went to do a test run today, the seats don't seem to heat up. The wiring and controller are installed in my -8A. The LED lights up on the switch and it appears to apply a voltage between the two prongs on the plug (used a multimeter). Also, I notice that the voltage displayed on my EFIS shows 12.5 volts with the switch off and drops to 12.3 when the switch is on. Yet they don't heat up after having them on for 5 minutes or so. It was in a 50?F ambient temp hanger. Any ideas?