I just purchased a 1995 Corvette and cannot shut off interior lights. Pulled fuse overnight as to not drain battery. Pulled car (http://www.chevroletforum.com/m_26151/tm.htm#) outside in sun, light not on, pulled back into garage, interior lights on again. Any ideas what could be causing this?
Dimmer switch is not on.

Fixed it yet? If not, check if radio stays on as well. If yes, Check the little knob in the door (back inside) also known as ajar switch. Not sure in a 95 if it´s in the back of the door or in the front. The electrical contacts in there might have corroded. New one at ecklers cost 13 usd last time I bought one.

Try and pry the small "pin button" out a little bit first quarter of an inch or so. Best done with a knife or pair of scissors.

Good luck