so then which one should I tap into?

 

Doesn't the wideband need both constant and accessory?

 

If it doesn't need both, I would tap into accessory

 

thats the diagram in the instructions i believe it just needs a 12v

 

acc power i believe. Taped into a constant before and my gauge never turned off ;-)

Now i gotta recheck myself, but I'd say acc power.

 

what color wire is that? blue with yellow stripe?

 

Yes tap into the acc wire. Run a separate ground to the frame of the dash. Don't splice the ground wire into another ground wire.

 

i tapped into the blue with yellow stripe wire going into my radio and i did the grounding before and everything and it turns on when acc/car is on thanks guys!

 

great n3vo glad you got it working!

 

thank you for your help i appreciate it much and it saved me from splicing into more random wires btw is this wire i tapped into its blue/yellow an accessory wire? btw is this blue/yellow wire i tapped into an accessory?

 

splice into any power wire or the fuse box in the cabin