hi all just bought a new heater plug resistor . however have noticed the old one all the wires go to one terminal on it as the coil is snaped on the old one would i be right in thinking this has been done to bridge the coil . and do i just wire the new one up with the one wire to the heater plugs and the rest leave on the other side . and will the old set have done any damage to the heater plugs cheers