no joy on changing ground wires......anyone know of the specs for the relay so I can get one from the auto-parts store?

 

do you have a multi meater? or test light pia a common wire to start with and put power to the orther two ont at a time the light should come on thoughes are the wires that you want to hook up to. with out the frounts pluged in do the rears work

 

I swithched the thermal relay for a $12 electronic one from the auto parts store and it fixed the problem!