Question: Ignition switch

[jopat86]

Installing a replacement ignition switch on my C1. The orig. switch has 5 terminals, labeled ACC, GRD, IGN, SOL, BAT. the new switch has only four terminals. The terminal missing is the GRD. Although each terminal has 2 plugs.
I've looked at the wiring diagram and don't see where I can double up.
Any ideas?

 

[JohnZ]

The "GRD" (ground) terminal was never used.