How to run wires from Engine to Cabin?

[ntmatter]

I need to run some wires from the engine compartment to the cabin, to connect to some switches in the center console. Is there a particularly good way to do this, without drilling through the firewall? I can't see any easy way through, though I haven't checked underneath the car as yet.

Thanks,

A

 

[1TONY1]

I prefer drilling a hole just to the rear of the pcm. Run your wires under the master cylinder and behind the pcm to keep them hidden. Use some small plastic wire covering and it is not noticable. You can also punch a hole at the rubber boot where the clutch pedal goes through.