[suren]

For 2000 regal, wiring should be same as 98, mirror with map lights only and
without auto dimming: orange for 12v (C terminal), Black for Ground (B),
and white for ground (A terminal). Terminal D is not used.

However, with auto dimming, 2000 lists 7 wires with pin number:
1 brown Fused voltage
2 black ground
3 lite brown back up lamp feed
4 gray auto dim signal
5 pink auto dim return
6 white map lights
7 orange 12 v from electronic control unit.
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