William Andersen wrote:
Anyone know what I need to buy to add a dimmer to my instrument
lights?
I want to be able to control the intensity of my instrument lights.
They are not shielded and reflect on the windshield, making it
impossible to sit and look through the windshield. We have to stand
while at the wheel at night. I've changed to red light bulbs, but the
instrument panel is tilted so much there's no way to shield the
windshield from the reflected light.
I went to a Radio Shack today and all they could come up with was to
offer a volume control knob mounted on a wall switch plate. Since I'm
not a techie, I need to know exactly what to ask for, since they seem
to know even less than me.

You need a voltage controller. I think you may get one at a car accessory
shop.