Coax through firewall

I am in the process of installing a 2 meter amateur radio, but can't seem to find an easy place to run the coax thru the firewall from underneath the hood, to under the dash.

Any suggestions?

Thanks in advance.

Maybe try the same grommet that the antenna wire goes through.

There's a grommet on the driver's side between the fender and the brake booster.......just pop a coat anger or thin screwdriver through it.......ig you look inside the cab by the drievr's side footwell the grommet is behind the emergency brake when its fully depressed......its about a foot up in that corner.....that's where my light wires come through.......or if you can go under the cab there's a grommet right underneath the drievrs side carpet....look under the truck and you'll see the rubebr grommet.......my cb antenna wires are run throught here....

Oops I gave wrong info as per the idiots at a local electronics (cb) installion shop. :banghead: I will reroute mine asap. Pinched wires are not a good thing. I have also got some good info from this post. Thanks Bubba14

should be a rubber grommet in drivers under dash that goes by the booster, or there will be a clutch plate that can be drilled through also.

I also suggest using a grommet, anyone you can find. If you dont, you have a possibility of the truck rubbing through the coax and grounding it. This will burn your radio up really quick. I've replaced many in dump trucks and tractors that have done this.

Thanks for all the suggestions.

I used the rubber grommet in drivers under dash that goes by the booster for the coax, and used the opening between the hood and fender to run the power cables.

I appreciate all the suggestions.

I also suggest using a grommet, anyone you can find. If you dont, you have a possibility of the truck rubbing through the coax and grounding it. This will burn your radio up really quick. I've replaced many in dump trucks and tractors that have done this.


you can drill a hole and go through the metal and use a plastic grommet that you can get from many stereo shops or possibly a auto parts store.

Thanks for all the suggestions.

I used the rubber grommet in drivers under dash that goes by the booster for the coax, and used the opening between the hood and fender to run the power cables.

I appreciate all the suggestions.


what do you mean you ran the power cable by the hood? like through the door jam? if so that is very unsafe! any wires that you run need to go through the firewall. if you go through the door or fender and that wire gets pinched or rubs through it will short out and catch fire.

what do you mean you ran the power cable by the hood? like through the door jam? if so that is very unsafe! any wires that you run need to go through the firewall. if you go through the door or fender and that wire gets pinched or rubs through it will short out and catch fire.


Sorry guys, that is a mistake on my part.

Being an extra class amateur radio license holder, I am quite familar with electronics and circuitry.

The above post was an actual copy/paste from an email message I had received from someone on how they did it. I copied and pasted their email, and replied to them in an email message.

When I replied in the above message, I had (I thought) copied and pasted another reply that I had made, but my wireless keyboard evidently did not copy what I had thought, and I did not proof read the message prior to posting.

Both the coax, and power cables ARE run thru the firewall.

My mistake in the post...and thanks for the suggestions.

Sorry guys, that is a mistake on my part.

Being an extra class amateur radio license holder, I am quite familar with electronics and circuitry.

The above post was an actual copy/paste from an email message I had received from someone on how they did it. I copied and pasted their email, and replied to them in an email message.

When I replied in the above message, I had (I thought) copied and pasted another reply that I had made, but my wireless keyboard evidently did not copy what I had thought, and I did not proof read the message prior to posting.

Both the coax, and power cables ARE run thru the firewall.

My mistake in the post...and thanks for the suggestions.

i am glad to hear that you ran the wires safely, because i hate to hear about a car burning up because someone ran wires through an unsafe area and they melted and burnt car to ground.