Fot those of you with aftermarket tachs, how do you run the wires behind the dash and into the engine bay? I am planning on mounting it on the dash on the left hand side above the vent. Do you drill a hole in the top of the dash to run the wires?

Thanks

 

Like you said, I just drilled a hole into the top of the dash.

 

Run your wires trough the top vents, it looks clean, and tighty!

 

Run your wires trough the top vents, it looks clean, and tighty! Also, why run wires into the engine bay? i ran mine to the ECU...