Well I checked the sensor, nothing really I can do to it, it's just a clear dot on the radio face, I wiped it off but radio is still dim in the sunlight.

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2002 X5 4.6is
1999 C5 Corvette
1992 Mitsubishi 3000GT VR-4
1994 Kawasaki ZX-9R
2005 Mazda 6 Wagon (Wife's)
1991 Mitsubishi 3000GT VR-4