Fitting Boost Gauges
 

Hello all,

just fitted a boost gauge to my 2002 WRX. Managed to do the engine connection with no problems :) , but cannot work out the electrical connection for love nor money. :confused:

I understand that this should be connected to the fog light switch. My front fog switch has 5 wires - 2 purple, 2 black and a yellow. Rear has 2 black, 1 purple, one red, one yellow and one green.

Gauge has 3 wires, ground, +12v and night light connection.

Two questions:-

1 - Connect it to front or rear?
2 - Which wires do I need to tap into?

All assistance gratefully received.... :D

If you use a test light in the back of the switch, you should be able to find a live when the lights are switched on. Use this for the live feed and find an earth for the return wire.

:)