Here's one me and a couple of friends did. The way we did it, we didn't drill holes or anything. We took out the entire blower/heater core. I don't drive the car in the rain so i didn't care. We ran the wires through that hole and no need for stretch or anything. The headlight harnesses are ran through the fenders. The brakes line are a bit more complicated then we thought so we just removed the abs and left it at that. I don't recommend messing with the brake line unless u know what u are doing. If you still want to do it, make sure you get a metric flaring tool and NOT stardard size. The bay isn't done yet either just close to it lol.
