Firewall hole making

[Hotness]

I have several electronics that I needed to run through the firewall but never knew where a good spot would be to go thru or possibly drill. So as of right now they are all running thru driver door into fender. I know this isn't safe or very attractive so I was wondering if any of you knew of a decent sized opening or a good spot to drill. I'm going to be adding a few more things soon so I wanted to be able to wire those the right way the first time and fix the rest of them. If any of you have any advice/pics I would greatly appreciate it. Thank you!

 

[STLtrailbSS]

Wiring harness boot isnt a bad spot I have seen guys do it there follow your harness to the drivers side.

Edit** - Just like this basically
My version of an amp install - Chevy TrailBlazer, TrailBlazer SS and GMC Envoy Forum

 

[HARDTRAILZ]

What are you adding now?

 

[Hotness]

Thanks. I'm adding some light wiring for future light installs.

 

[Regulator]

Thanks. I'm adding some light wiring for future light installs.

Roof lights or front grill lights?

If you adding roof lights then you can drill the roof under the front end of the rack rails. Add a couple of rubber grommets to protect the wire and bring everything into the plastic cap on the front of the rack. That is how I ran mine and haven't had any issues at all. I can show you here in a couple weeks.

 

[HARDTRAILZ]

I need to take a look too. I may toss a couple long range lights up there soon.

 

[Hotness]

Im wiring for front grill and roof. And for a set in a secret location

 

[Regulator]

Im wiring for front grill and roof. And for a set in a secret location

I am sure we can get you set up. I have plenty of experience running wire on these trucks, I would be glad to give you a hand.

 

[HARDTRAILZ]

WooHoo Rock lights and hatch lights!

 

[jimmyjam]

i go in to the right of the main firewall grommet (from the inside) and use a screw down grommet like this

View attachment 17164

I'll try to remember to grab a pic later

 

[Hotness]

i go in to the right of the main firewall grommet (from the inside) and use a screw down grommet like this

View attachment 1484

I'll try to remember to grab a pic later

yes this is what i want, a pic would be great. I have a lot of wires and just want to make a new hole for it all. Where do you buy those at, and what size did you use?

 

[jimmyjam]

through my firewall i am running 0ga and i got that along with my wire here (scroll to the bottom)

I also have one under the driver seat that I run the wire for my exhaust cutout through, as well as one by the rear for rearview camera. Those are smaller ones that I had gotten with some water tight outdoor florescent fixtures, they are liquid tight romex connectors. you may be able to find them at an electrical supply store.

 

[Hotness]

Thank you those are perfect. So if I drill right next to the main grommet I should be ok? If u could snap a picture that would ease my mind a little

 

[jimmyjam]

here ya go

View attachment 17169

View attachment 17170

 

[ieatglue]

You could get some shrink tubing and throw it over the grommet, run your wires and heat the tubing to shrink and hold the wires in place, giving it a factory look

 

[Hotness]

Thanks guys this answers all my questions. Thanks for the pics