I Just Bought Another Turbo Regal This Ones An 86 And I Was Deatailing The Engine And I See This Wire That Is Plugged Into The Back Of The A/c Line That Has A Electric Plug On It Right Under The Alternator. I Has A Little Toggle Switch That Has 3 Positions??? The Wire Only Says Made In Usa. Its All Rolled Up So It Seems Like You Put It In The Car?? Any Help Ill Try And Get Some Pics Of It. Thanks Alot Justin