you can wire it to any fuseable link, on my 92 583 formula plus I went to the headlight link, but on my 98 formula deluxe 583 I put a toggle switch on the dash and went right to the battery.
if it stays hot (or live) and you have a cable hanging down near the tunnel I've seen them ark from the lead to the tunnel so I wanted a shut off. good luck and happy trails
For the Record Man do I ever HATE this Global Warming Crap!!
Ride it Like You Stole It !
What I own/ride
1980 440 Scorpian Sting
1993 583 Formula plus LT
1999 583 Formula Deluxe
and an old Rupp