So how do ou make an SSP car legal and other questions

[mystic96]

I'll ask the experts...I live in PA and I wonder how to make a car legal. I know the lights and sirens have to be diconnected, but lets say I buy a car with the lights on the roof, do they need to be covered? I'm guessing what you guys refer to as a "slick top" is one the lights are mounted on the package tray?I remmeber seeing a car last year at All Ford Carlisle that had a sign in the window that read "not in service" or "out of service". I just don't want to make a big investment and I can't drive it.