[martensite]

I need to pull two strands of electrical wire from the driver-side footwell into the engine compartment (wiring up a laser jammer). Needless to say, I do not want to make any new holes into the firewall.

I took the driver-side footwell apart, finding that the only way through the firewall is this rubber grommet:



Any suggestions as to how I can go through there? I've read a couple of DUIs that involve puncturing it, but there has to be a "proper" way to do it.

Best regards

[Wongway]

Does it have to be on the driver's side?

First search I made and 2 links later, I found this...
http://www.e90post.com/forums/showth...light=Firewall

Seems safer than driver's side to me...

[martensite]

@Wongway: Thanks for the link, I've actually looked through that DUI. The problem here is that the passenger-side tunnel ends in the sealed ECU box, and my wires need to go all the way to the front bumper of the car. The driver-side tunnel ends somewhere near the DSC controller module, which has ample space to route a wire along it.

[Wongway]

Ahh, I see. Good luck on that one there!

[techwhiz]

Originally Posted by martensite

I need to pull two strands of electrical wire from the driver-side footwell into the engine compartment (wiring up a laser jammer). Needless to say, I do not want to make any new holes into the firewall.

I took the driver-side footwell apart, finding that the only way through the firewall is this rubber grommet:



Any suggestions as to how I can go through there? I've read a couple of DUIs that involve puncturing it, but there has to be a "proper" way to do it.

Best regards

I just put a couple of small holes and pulled the cables for my install right through. Been that way for the last two years.

Just do it....