Let me rephrase that, the overhead and trunk lights work when 'mechanically' turned on. However they stay on indefinitely. The slider switch does nothing.

I see nothing in either the interior or lighting categories regarding this problem.

The #9 fuse is fine (has continuity). I did notice that the trunk light plastic cover is warped and brown in the center. It's light does not seem any brighter than on my '07 Ltd. The limited's trunk light cover is fine. The bulb in the SRT-6 is 10W and made in France. I'm assuming it is original to the car. But why the heat build-up?

FWIW: the '07 Ltd coupe has 57K and the '05 SRT-6's has 56K mileage wise.

I'm inclined to think that the problem might be the sliding switch itself. Does one pop-off the outer plastic or just the sliding switch? OR...?

Also, where is the Central Locking Pump specifically located. I thought I read it is in the trunk. If so, where in the trunk?