1988 Bonneville fuse block

I just bought a 1988 Bonneville. I took off the fuse block cover, and it revealed that were was no fuse at block #8, but a wire coming out connected to a switch. Anyone know what fuse #8 is for? Thanks

Hey hey. From my owners book it says fuse number 8 is:

8 - (5Amp.) Elec. Brake System - Pump

Now this is for a 1988 Bonneville LE 3.8 Type C motor.
-A