I am installing after market remote starter and keyless entry..... Says i need resistors tells me the ohms 2-2000ohm , 1- 5200 ohm , and a 180 ohm but it does not tell me the watts ... Never really woked with resistors before where do i get them? Can i use the ones they sell at Radio shack and if so what wattage do i need .. Or am i way off and i need 12 volt resistors? they are for the park lamps and the door locks and the starter hook up. thanks ...