I installed Oxford grips on my V85tt, and connected them to the stock wiring so that can use the button on the left controls. They have worked great so far
I wrote up the steps on the V85tt Facebook group site Borja Ruiz Martínez I replied in this post ...
https://www.facebook.com/groups/GuzziV85/permalink/747809662365147/Basic steps:
Remove grips
Sand throttle tube so grip will fit
Glue on Oxford grips.
V85tt pre-wired connectors are under right side black cover under tank
Lift tank to remove (after removing screws)
Connectors are molex .062
Need to make a cable to connect wires to Oxford controller to V85tt wiring. (Need to cut off Oxford controller.
That’s it. Test and stuff wires back under black cover