Where abouts is the best place to wire these to? Looking for the gauge to come on with the headlights and wire in under the dash......cars a MY95 if it matters.

Can anyone help???

 

put it to back of *** lighter or radio mate, if the lights on in the day you wont see it anyway

 

i wired the earth to the fuse holder behind the dash (nut holding holder) switched live to foglight switch and permanent live to back of clock - gauge lights up with lights on only :-)

 

Theres only 2 wires coming from mine! Live and neg! thinking the *** lighter will be easiest....any idea which wire is which???

 

Doesnt matter mate, its only a bulb

 

Convention says that the middle pin of the lamp goes to the positive and the outer to the negative.
More important if the guage has a metal case, this should always be the ground.
Behind the stereo there is a purpose made connector to feed the dealer fit boost gauge.

Dipster