Most vehicles have long since changed away from a potentiometer based instrument dimmer to a Pulse Width Modulated (PWM) based electronic dimmer controller and I've been working on retrofitting one of these newer style electronic dimmer controllers into my 280Z. I poked around the junkyard looking for one that would mechanically fit in the original potentiometer location and settled on one from a late eighties to early nineties Toyota Camry. The main criteria needed are short stubby mounting de