I installed a aftermarket tach in my car, hooked everything up to what seemed to be the proper connections, however now the light on the tach is very bright when I turn on lights and the lights in the factory gauges are very dim. Wondering if this a power drain issue and if you have to put some kind of resister in the line with the new tach? It says the tach uses a 2 watt bulb which seems high to me?
The dimming switch dims the lights, but then you can't see the other gauges at all. I have it hooked up to a good ground I believe. I guess I could try to find a smaller watt bulb?
