Yeah, the switch next to the radio is sometimes referred to as the "stealth mode" button, and as far as I know it was a 9C-1 option only for killing all exterior lights. I dunno if it was supposed to have any effect on the interior lights. I read about it on the Wikipedia article on 9C-1's & how having the car running completely dark was beneficial for certain law enforcement activities.
As far as your lights staying on when the light switch is turned off? Sounds like DRL's or the twilight sentinel is working correctly. In my 95' SS I can spin the T/S dial all the way up or down for maximum sensitivity or off, and I leave it off because I can turn my own damn lights on when I want them on. This T/S dial is right next to the interior dimmer dial on my dash.
Also I love the option of having the T/S off & no DRL's because my BBB looks so damn mean with just the parking lights on.
I can confirm the dome override switch trick. I've seen it before. Also in my 98' Chevy Silverado I could engage the parking brake & it would kill the DRL's. You might try that.
~"Lord Vader... your car is ready."~ -=- 1995 BBB Impala SS - 60k mi DD, Mobil 1 Full Syn, K&N Cold Air Kit (+ FB Delete), Nitto NT 450's, Viper Remote Start/Alarm, Pioneer Sound System, AC Delco Prof 7 yr. Battery/Double Platinum Plugs/Fuel Filter X 2/O2 Sensors/Brake Booster Check Valve, MSD Cap/Rotor/8.5MM Wires, Bosch Water Pump, 180 degree Stat, 3 yr. Serpentine, ProStop brake rotors/pads X 4, Front Bumper Repaint/Plate Delete, Airtex Fuel Pump -=- ISSCA #2537 -=- Hoosier INC -=-
Last edited by MyPreciouSS; 12-02-2012 at 08:53 PM.