I am trying to install my boost gauge, and i only have problem with getting power to the lights. it is mounted on the steering column, so i spliced the wrap holding three wires from the turning signal switch. Red, black, and green. red is for the headlights, green is for the illum, black should be the ground. So my gauge has two wires, black and white. so i went, white to green, then black to black, but the gauge is on 100% of the time.............any ideas?

 

Splice it into the headlight switch so that when you turn on your park lights/headlights, it'll illuminate.

http://www.fd3s.net/boost_gauge_install.html

 

Or better yet tap the ashtray light wire and get the power from there..

 

tell me if i am wrong, but from my understanding, i could actually cut that green wire then wire the boost gauge in serial?

 

i am trying to make it into parallel but it isn't working. i got one end on the green wire for i had initially, then the other end i put it through to the green wire on the fuse box, and it turns on 100% of the time.

 

Like I said just run a wire to the ashtray light in the center console and tap it to the power and your good to go...

 

If you want the gauge light to come on with the car lights, use the dimmer wire. If you just need power, use a fuse tap and go to the fuse box at the footwell.

 

Do 'em both at once and save yourself some time in the long run.
http://home.ptd.net/~blouzbee/guides/boost.html

 

That is an awesome writeup!