Results 1 to 4 of 4

Thread: Power cable through firewall (How to)

Threaded View

Previous Post Previous Post   Next Post Next Post
  1. #1
    Member Maestro's Avatar
    Join Date
    Feb 2018
    Location
    Quebec City
    Posts
    31
    Thanks
    0
    Thanked 10 Times in 8 Posts

    Power cable through firewall (How to)

    I talked to some of the mechanics working at my dealer and they told me most people go through the firewall by using a clothes hanger to punch trough the rubber gasket that lets the wiring go to the engine compartment. Here's how I did it...

    I straighten a clothes hanger and from the engine compartment I used it to punch a hole in the rubber gasket:

    Be careful when you punch the gasket, there are 2 layers of rubber, go straight trough the first one and then when it gets to the second layer of rubber get it away from the cable harness so you don't risk scraping the car wires!!!

    Name:  Going-through-firewall-1.jpg
Views: 2518
Size:  58.9 KB
    Name:  Going-through-firewall-2.jpg
Views: 2233
Size:  74.0 KB

    Here's a photo of what it looks like from inside the car, driver side under the dash:
    Name:  Going-through-firewall-3.jpg
Views: 2439
Size:  54.9 KB

    Then I used some duck tape to attach the power wire to the clothes hagner (about 3 to 4 inches of cable so its sturdy enough to go through the rubber gasket):
    Name:  Going-through-firewall-4.jpg
Views: 2352
Size:  48.7 KB
    Name:  Going-through-firewall-5.jpg
Views: 2324
Size:  56.3 KB

    Then I pulled on the clothes hanger from the inside, carefully because you don't wanna pull the gasket away from the hole in the firewall:
    Name:  Going-through-firewall-6.jpg
Views: 2489
Size:  52.7 KB

    I used a Schosche AMP kit rated for 160 watts from Walmart and its got a 12 gauge power wire.. as you can see it fairly big with the tape holding it to the clothes hanger so you gotta be _very_ careful when you pull it trough the rubber gasket! :
    Name:  Going-through-firewall-7.jpg
Views: 2175
Size:  74.7 KB

    Netx, I'll be posting some photos and a how to to get all the wires to the back of the car and connecting the head unit to the sub.
    Last edited by Maestro; 06-17-2018 at 02:17 PM.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •