I have now seen both styles, my first '80 Cutlass Calais had the mercury style light, and would come on regardless of if the lights were on or not.
My second '80 Calais does not have the mercury style switch. The lights have to be on for it to work. Threw me for a loop at first! Weird...
HTH.
My second '80 Calais does not have the mercury style switch. The lights have to be on for it to work. Threw me for a loop at first! Weird...
HTH.