diff lock rev limiter

looking for some basic solid advice for my 2015 700 grizz,
I had a 2006 Kodiak 450 and jumped a wiring block under the seat with two inches of wire and this eliminated the diff lock sputter in forward, and I used the override button in reverse, looking for the same mod for 2015 grizzly 700 what color is the wire I need to ground out . I am looking to do this under the front panel by the battery and wiring harness, some one said it is the seafoam green wire in the six wire block under the instrument cluster. is this correct?