Thanks Millsy,

Heres what i have... using 0V as reference, voltages are in red.
Note on the top fuse which is for bulbs, the voltage difference is 6V.
It would seem the switches are running on High Tap 26V and 38V = 12V ( hate high tap)
Not sure where the 42V and 20V = 22V are coming from.. but im assuming its being used as coil voltage