Amp power cable through firewall - Drive Accord Honda Forums
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post #1 of 23 Old 06-10-2010, 03:05 PM Thread Starter
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Amp power cable through firewall

Those of you who have the coupe with subs, where did you guys run the power wire through the firewall? I really don't want to drill into it if I don't have to. Thanks.
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post #2 of 23 Old 06-10-2010, 03:41 PM
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Originally Posted by SHOWCARMRYUK View Post
Those of you who have the coupe with subs, where did you guys run the power wire through the firewall? I really don't want to drill into it if I don't have to. Thanks.

i also didnt want to drill a hole so i ran my 4ga. pwr wire along fender only issue is the pwr wire will b showing when u open the door

2010 Honda Accord i4 coupe


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post #3 of 23 Old 06-10-2010, 03:45 PM Thread Starter
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Originally Posted by tym2shyn View Post
i also didnt want to drill a hole so i ran my 4ga. pwr wire along fender only issue is the pwr wire will b showing when u open the door
You are using the same sub and amp I am using. How does it sound?I don't want it visible when the door is open. I hope someone else has another solution. Thanks tho.
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post #4 of 23 Old 06-10-2010, 04:01 PM
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If you crawl under the driver's side of your dashboard, and look by the gas pedal drive-by-wire assembly box (where the throttle cable assembly would have been), look just to the left of it. You will find a rubber gromet and a pre-drilled hole in the firewall. Push the gromet out into the engine bay (it should fall right to the ground as there is nothing directly under it) and you can run your power wire through there. I took the gromet and cut a hole large enough for 4 gauge to fit, and reused it when I ran my wire. Then I used some silicone sealant to make a nice tight seal.

From the engine bay, you will find it if you look to the left of the brake master cylinder.

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post #5 of 23 Old 06-10-2010, 04:27 PM
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Literally just posted this in another thread like 5 hours ago...ill post pics in a few when I get a chance...don't drill any holes
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post #6 of 23 Old 06-10-2010, 04:41 PM
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Quote:
Originally Posted by SHOWCARMRYUK View Post
You are using the same sub and amp I am using. How does it sound?I don't want it visible when the door is open. I hope someone else has another solution. Thanks tho.
sounds pretty good.. im using this enclosure to save trunk space..



http://cgi.ebay.com/Honda-Accord-200...item5884bf53f6
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2010 Honda Accord i4 coupe


Current mods:

20% front tint
limo tint rear
20x8.5 front 20x10 rear 40 offset all around
( MHT STOKES )
235/30/20 front 255/30/20 rear
Alpine type r sub 12"
Alpine MRP-500.1
8k HID kit
debadged

Future mods:

fog lights with HID 8k
Megan racing coilovers
Rear deck lid
ron jon body kit
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post #7 of 23 Old 06-10-2010, 04:42 PM
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post #8 of 23 Old 06-10-2010, 04:43 PM
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Quote:
Originally Posted by fastball View Post
If you crawl under the driver's side of your dashboard, and look by the gas pedal drive-by-wire assembly box (where the throttle cable assembly would have been), look just to the left of it. You will find a rubber gromet and a pre-drilled hole in the firewall. Push the gromet out into the engine bay (it should fall right to the ground as there is nothing directly under it) and you can run your power wire through there. I took the gromet and cut a hole large enough for 4 gauge to fit, and reused it when I ran my wire. Then I used some silicone sealant to make a nice tight seal.

From the engine bay, you will find it if you look to the left of the brake master cylinder.
now looks like ill be rewiring my pwr cable thhx to dis

2010 Honda Accord i4 coupe


Current mods:

20% front tint
limo tint rear
20x8.5 front 20x10 rear 40 offset all around
( MHT STOKES )
235/30/20 front 255/30/20 rear
Alpine type r sub 12"
Alpine MRP-500.1
8k HID kit
debadged

Future mods:

fog lights with HID 8k
Megan racing coilovers
Rear deck lid
ron jon body kit
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post #9 of 23 Old 06-10-2010, 05:42 PM Thread Starter
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That looks like the i4 I have the v6 it looks different not as much room
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post #10 of 23 Old 06-10-2010, 05:48 PM
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its is the i4...didnt know that the firewall was different on the v6. good luck finding a solution. sorry i didnt have what you needed.
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post #11 of 23 Old 06-10-2010, 05:53 PM Thread Starter
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its is the i4...didnt know that the firewall was different on the v6. good luck finding a solution. sorry i didnt have what you needed.
I appreciate your post. They are definitely the same firewall. There is just alot more shit in front of then the I4 its tough to get back there.
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post #12 of 23 Old 06-10-2010, 09:15 PM
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After looking it over for a while I just went ahead and drilled a hole and used a Stinger grommet. Came out just fine. Can't see it and the wire is very well protected. I don't know if I have a pic on the computer anywhere but if you search in the audio section for threads by DevinKato it's the same place he drilled through.

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post #13 of 23 Old 06-10-2010, 09:24 PM Thread Starter
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Quote:
Originally Posted by fastball View Post
If you crawl under the driver's side of your dashboard, and look by the gas pedal drive-by-wire assembly box (where the throttle cable assembly would have been), look just to the left of it. You will find a rubber gromet and a pre-drilled hole in the firewall. Push the gromet out into the engine bay (it should fall right to the ground as there is nothing directly under it) and you can run your power wire through there. I took the gromet and cut a hole large enough for 4 gauge to fit, and reused it when I ran my wire. Then I used some silicone sealant to make a nice tight seal.

From the engine bay, you will find it if you look to the left of the brake master cylinder.
Thanks man I found the place your were talking about. You saved me from a big headache.
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post #14 of 23 Old 06-11-2010, 04:58 AM
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On all cars there generally at least 1 main harness going through firewall . What I used to do is once you find harness and rubber grommet . I then make small cut in bellows area and take my wire tap it to a coat hanger and push it through .
The coat hanger helps direct new wire harness so your able to fish and control were you want it . Sometimes I would have to go from inside to engine compartment (depending on obstacles ). After wire is all through, just dab some silicon RTV over the cut to waterproof it .
Anyway I can count on my hand the few times I drilled a hole in firewall .

Ed

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post #15 of 23 Old 06-11-2010, 09:05 AM
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Quote:
Originally Posted by fastball View Post
If you crawl under the driver's side of your dashboard, and look by the gas pedal drive-by-wire assembly box (where the throttle cable assembly would have been), look just to the left of it. You will find a rubber gromet and a pre-drilled hole in the firewall. Push the gromet out into the engine bay (it should fall right to the ground as there is nothing directly under it) and you can run your power wire through there. I took the gromet and cut a hole large enough for 4 gauge to fit, and reused it when I ran my wire. Then I used some silicone sealant to make a nice tight seal.

From the engine bay, you will find it if you look to the left of the brake master cylinder.
When I ran mine (I4 sedan) I used this method and it worked great. But...

WARNING! That grommet can (and did) fall into the engine bay and not hit the ground. I had to jack up the car to retrieve it, and even then it was a PITA. The next time I had to pop it out, first I went under the hood and just stuck a piece of wire with electrical tape on it to that side of the grommet. That way when it fell, I could just lift it right out with the wire.

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