i have done it twice, once with a buddy and once with my brother, easier then most ppl think. u need the power regulators both sides, switches, under dash harness plug and relay. u only need to run wires from the driver side switch to the fuse box and to the passenger door. it would make install easier if u remove the fender to run the wire thru the doors like oem and to have the ex or si door panels as well so the switches fit in like stock.