[jimw427]

Well, checked it last night, not sue if the switch is right on the back as I can't get to it without pulling the dash and steering column, man I hate to do that. The other thing I found out check the tach part number and instructions, which I never checked before as I never had a reason to question it. The part number on the box is for a Marine only tach and not one for both auto and marine. Not sur if there is a real difference as two how they work or just how hey are built and sealed for water ect.... I guess I need to get a hold of SW to find this out, unless someone here has some insight.

Jim