I have one relay. 12v coil. 4 poles. Double throw. Just need one diode. Thanks again for all of that detail.
I'll rig up the relay and try it on my own system to see the result as far as pops and such. If it's good I'll use it and if not I'll grab the Niles piece.
Craig
My wife says I can't do sarcasm. She says I just sound like an a$$hole.