sorry guys, i know the answer was discussed in a topic in accordclub but the website is down. this is quick so it can be closed as soon as its answered

im wiring my a/f gauge to the O2 sensor by my header....where is there a hole to run it through the firewall? any other suggestions? i dont want loose or sloppy wires under my hood in the engine compartment. thank you

this is on a 90 accord by the way. thanks