ok i got an 99 expo that came with airbags in the rear, i got bored one day and decided to unhook the ride control stock thing i guess, its on the back axle and has three wires running from it(red, white, black) im guessing they run to the compressor under the hood, well anyways when i let all the air out it lets the body sit on the axle for a bumpy but awsome look, slamed rearend lol, but im getting tired of having to get out and get under the expo to undo it and i know that if i just unplug the wires that it drops too, but i want to find a way to put a switch on it so i can just flip it to drop but i dont know which wire to cut and use for the switch, so if anybody knows or has a way to figure this out please help