I removed a total of six screws, lifted up the top, and supported it. Then i removed all 4 old switch assembly, using only my hands, no tools needed. You have to remove the back panel, to connect the new wires, very easy, only 4 screws. Just look at where old wires are plugged in, and install, new ones in same spot. Put it all back, and it should work great. Very easy to do, total of maybe 20 min needed.