I know this is the wrong section but no one looks at the other section. So I jus bought my wrx and it had a boost gauge installed, I went to install my double din navi unit I got and now the gauge no longer works...there are a couple loose wires that are jus chillen there that I think came undone wen I was pulling out the stock headunit...so i guess my question is..where do the 4 or so wires attached to...there is a white and black a red and then i think 2 other colored ones....thanks in advance

 

ground, constant 12v, ignition, illumination

 

so ummm what? which goes to which one....or are they the same colors as the wires for my head unit and i jus splice them in or what

 

I don't know, check the manufacturers wiring diagram. But, black is always ground, red is always constant 12v. White may be switched and the other is probably illumination.