Tach wire termination if no tach

[rich weyand]

Does anybody know where the brown tach wire terminates under the dash if you do not have a tach on the truck?

I am buying the combo tach/fuel gauge from these guys, and would like to have some idea of where to look for the other end of that wire. It is there, it comes off the distributor and heads into the cab, I just don't know where it ends up. Yet.

http://www.gmsports.com/content/new-...and-gmc-trucks