Gerbow
Sr. Member
I picked up a tach and it says to splice red wire into any vehicle harness wire which is energized with the battery voltage ONLY when ignition key is in the ON (run) position. So, it seems everything is on in ACCESSORIES also.
Where should I splice into?? Also, should I ground it to the battery neg. terminal or is grounding to the frame/body under the hood ok?
Where should I splice into?? Also, should I ground it to the battery neg. terminal or is grounding to the frame/body under the hood ok?