G16e upgraded, need help with alltrax spm

[joshualmarley]

All,

Hopefully you guys can chime in with some help. Just spent the day upgrading a friends 1999 G16 to 48v with new t875's, alltrax spm500, 2ga cable, and the FnR reversing contactor from Scotty b as well as the neighbor painint it "Michigan" blue. All went well but I have 1 issue, the cart would engage the solenoid when depressing the pedal but would not move. We looked around and discovered the harness for the fnr was just hanging there after the upgrade so I plugged in the old fnr switch and it works. What am I doing wrong? I realize no current is going through the fnr switch and is now going through my fnr reversing contactor but if I unplug the fnr switch the cart doesn't run. There are 4 wires going into the fnr. 2 yellow wires, a pink wore, and a red wire.

Thanks in advance!