Question about Car Audio Receivers
Did you ever find a solution? I'm having the exact same problem.
Posted on Nov 26, 2009
On newer stereos, you might have to experiment with the "panel" wire.
I just installed a VR3, and discovered that the more voltage on the "panel" wire, the dimmer the display.
With no connection, you get full (daytime) brightness. With full voltage, you blank the display.
I wired mine up to the car's instrument lights through a 10Kohm trim resistor so I could adjust the "night" intensity. But if I dim the car's instrument lights, the stereo gets brighter. Oops.
Older car -- I can't just flip a software bit. ;)
But I gather a lot of new stereos are like this. The display on my (factory) stereo in the Mitsu dims a fixed amount when the lights come on, but doesn't adjust with the car's instrument dimmer.
Posted on Jul 07, 2008
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