Stereo & Electronics - HUMount - Possible to dim?

I have an HUMount installed in my Camaro and I absolutely love it.. Except it's SO BRIGHT! It lights up the entire interior when it's on full brightness. I have been using the gauge light dimmer to control it, but obviously that also dims all the other interior lights too, and I prefer my gauges on full brightness.

Does anyone know if there a sort of switch I can wire up to the HUMount so I can dim the LED's separately from the dash lights? This would be ideal, so that way I can leave the mount at like 25% brightness and the rest of my dash lights at 100%. Has anyone tried to do this or something like it before?

Thanks!

The instructions that came with my HUMount said you can wire in a 5K pot to the ground wire and tune it.

So one of these? Not sure how they work to be honest, but I'm sure I can figure it out. If that's the right thing, I'll run out and pick one up immediately. Thanks for the help!

http://www.radioshack.com/product/index.jsp?productId=2062356&filterName=Type&filterValue=Potentiometers

Its just a variable resistor. It varies from 0 ohms (no resistance), to 5000 (5K) ohms (more resistance). The more resistance, the dimmer the lights.

So yeah, that would work. Splice it into either the positive or ground wire.

Thank you! Took about 3 minutes to install. Works perfect now. Thank you for the help!