Thread: help me install my boost gauge!

Originally Posted by triebenbach07

what gauge do you have? I am looking for a brand name here, so I can better help you. or please tell me what color wires are in your gauge pigtail.

red-should be a switched power source, like your ignition. Mine is spliced into my fuel pump power
yellow- idk if your cluster would have this, mine does do to multiple color backlight choices. but should be a constant 12v. i hooked mine up to the yellow wire on my HU harness
black- find a good ground
orange- switched 12v. most people splice this wire into their headlight switch. on my gauge (glowshift) this power signal dims the backlight by 30%.

autometer self lit gauge. There is no wires coming from the gauge. There was just 2 contacts, 12v, and Ground.

according to this my dimmer might be gray not orange for some reason.

2004-2005 Pontiac Grand Prix with Monsoon Wiring Information