Hi all,

Ive had my VDO boost gauge fitted for a few months now but not got it wired up to the electrics yet. I have finally found myself a bit of time and went and bought some crimp connection things, but does anyone know which of the below wires is live? The image is of the wires behind the headlight switch unit. I suppose I could just take a guess and crimp into each one, dont think it would do any harm.

My guess is its one of the red or red/black wires top right of picture?

If i remember correctly, theres about 3 lives in there. The two big red ones, and a smaller one. But i would strongly advise getting a cheepo voltmeter to double check.

Also would advise putting an inline fuse between the live and boost guage, ive had bad experiences fiddling about with the headlight wires trying to make the "see me home lights" mod work.