Power wire thru firewall help.....

[geowick07 10+ year member]

94 ford probe. anyone have any experience on these? i am installing my first amp this weekend and i took a look last night, and i cannot see any way (other than drilling, which i would rather not do) to get the power thru the firewall.

any input is appreciated in advance.

thanks!!

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[justinschmiidt 10+ year member]

just get a gromet, and drill a small hole to fit the wire though, i have been wiring through the fender wall lately.

 

[AcidicDreams 10+ year member]

just get a gromet, and drill a small hole to fit the wire though, i have been wiring through the fender wall lately.

yah, you can get the gromet at an auto parts store... it's really not that scary once you do it and it'll look like any other wire running through the firewall... just make sure you can get to the wire inside the firewall

 

[geowick07 10+ year member]

so there are no existing holes that i can use there?

 

[AcidicDreams 10+ year member]

so there are no existing holes that i can use there?

Well I have no idea on a probe... but another method I've used is drilling and small hole (~1/2 the diameter of the wire) in an existing grommet and lubing the power wire up with shampoo then pushing it through... the rubber will seal around in and it's easy to do...

 

[geowick07 10+ year member]

ok...guess its time to break out the drill...wish me luck!!

 

[AcidicDreams 10+ year member]

ok...guess its time to break out the drill...wish me luck!!

g/l.... there isn't a better way.... unless you want to get laughed at (through the fender into the door... uber ghetto style)

 

[Decipha 10+ year member]

i find thats the hardest part for first time installers... its not hard, just look for a good spot inside the car that you can get to easily and hidden, then try to locate the same spot on the other side of the firewall, i know this doesn't help much since common sense can give you that much but try to locate something that pertruding the firewall and use it as a reference, for example, the steering column, locate the steering column on both sides the firewall and mark per-say an inch to the left of it (just an example) tis gives you the benefit of the doubt that you will have a nice clean hole with out damaging anything

if you would like my sister has a probe and i can take a look for you... i won't be able to reply until tom tho

 

[justinschmiidt 10+ year member]

g/l.... there isn't a better way.... unless you want to get laughed at (through the fender into the door... uber ghetto style)

i went through the fender, but the door was off at the time getting painted so i drilled right there by the bracket and it ended up perfect, you cant see it with the door open or close. i clear coated the hole, and put a rubber weather seal. 4 years laterr no rust, and its ran into

 

[geowick07 10+ year member]

ok. well first i will look harder to see if there something already there i can use. if not, i will drill. and yes Decipha, if you could take a look, i would appreciate it. install isnt happening til the weekend.

 

[geowick07 10+ year member]

and what about mounting of amp and sub box? this maybe ghetto as well, but i dont have anywhere to screw into. and i was told by a few people to try Velcro........ghetto or give it a shot?

 

[wilzyx 5,000+ posts]

screw the amp to the back of your backseat, if it folds down you have instant access and if it doesnt then it will be out of the way and look cleaner if you put your box in front of it in the trunk so no one can see it

 

[geowick07 10+ year member]

back seat isnt a good idea is it? i thought you were supposed to mount these things flat. for air flow purposes.

 

[wilzyx 5,000+ posts]

running only 300 watts it shouldnt get very hot at all, and if you are still worried put some rubber spacers on when you screw it in to give it some room underneath the amp for better airflow.

 

[Ruffy 10+ year member]

g/l.... there isn't a better way.... unless you want to get laughed at (through the fender into the door... uber ghetto style)

hey now, I went through a grommet on the side of my car through the fenderwell

Only because my engine bay makes it almost impossible to run through the firewall. Common places for my car are through the steering column boot. Which i didn't want to do. And a mthyical "plastic" grommet that can be drilled out if you remove the glovebox. Well guess what, good luck drilling it out and getting anything larger than 4ga through it.

The way I did it the wire doesnt ever flex, the door never hits it, it runs into the car through a rubber grommet, from there its run under the carpet to the trunk.