hey guys I have a lamco oem boost gauge i bought off of someone that has the harness, however on the boost gauges wiring there seems to be a dark blue wire that he cut off and I can't tell what it was for. I tried just splicing them back together but i blew my fuse for the clusters illumination. Could anyone hook me up with a wiring diagram for the boost gauge? I've already used the sub wiring diagram to hook that up today but now the only gauge out of the factory gauge set I cant get to work is the boost one. Or if one of you could tell me what wire this dark blue one goes too that'd be nice too.


BTW If anyone has a spare oil temp sensor for the oem performance oil temp gauge PM because i actually need one of those

nvm found out he tapped the original black and yellow lines for some odd reason... I grounded the wire into the frame that holds the radio do you think thats a bad idea? I figured itd be ok because the radio also grounds into it... so far nothing bad with the fuses. Oh and does anybody happen to know what the bulb condom size is? I hear there is a better one to get to make the boost gauge not so dim

The only electrical connection I remember making when I installed my Subaru turbo gauge was the relay wire to the spare 2P connector in back of the stock radio.

Ground is ground though...tapping the radio frame shouldn't be an issue for a light.