ok i am having trouble with my head lights and taillights ... I got them all to work then i started on brake lights and now i cant get my taillights to come on ... this is the wierd part i get 12 volts to both rear tail lights but as soon as i put the bulb in the voltage is dropped and the lgith does not come on and i know they work since they just worked... Am i missing somthing . also the head light rely dont fire but that should not effect the tail lights