How to get amp wire through firewall to battery?

[08fusiondriver]

Hello everyone!!! I am looking into possibly adding an amplifier to my car for rear deck speakers and an subs. I know to run the amp wire through the door sill on the driver side of the car, but how do I get the wire through the firewall? I have seen on other posts about drilling a hole through a grommet (I have a v6 Fusion). Should I do that or is it possible to just follow some current wires and route the amp wire with them. I am looking at using a 4 gauge wire. Also, would it be easiest to remove the battery to maybe make it easier to find where the wires go through the firewall? Thank you :D

[QuoVadis69]

Hello everyone!!! I am looking into possibly adding an amplifier to my car for rear deck speakers and an subs. I know to run the amp wire through the door sill on the driver side of the car, but how do I get the wire through the firewall? I have seen on other posts about drilling a hole through a grommet (I have a v6 Fusion). Should I do that or is it possible to just follow some current wires and route the amp wire with them. I am looking at using a 4 gauge wire. Also, would it be easiest to remove the battery to maybe make it easier to find where the wires go through the firewall? Thank you :D

 

Under the steering wheel, by your foot, you'll find on the fire wall a hole with a whtie plasric cap in it.....

Just drill into this cap, don't need to remove battery for that.

[08fusiondriver]

Under the steering wheel, by your foot, you'll find on the fire wall a hole with a whtie plasric cap in it.....

Just drill into this cap, don't need to remove battery for that.

 

Thanks QuoVadis69! However, in the event that I want to maybe avoid drilling into that hole do you think it would be possible to run the amp wire with the existing wires through the firewall?

[QuoVadis69]

Thanks QuoVadis69! However, in the event that I want to maybe avoid drilling into that hole do you think it would be possible to run the amp wire with the existing wires through the firewall?

 

 

Maybe i wasn't clear enough, The white plastic cap taht im talking about is designed for this.... When i put my remote start, i pass the wire threw that cap and same thing for my 12 volts wire to the trunk.... it's fairly easy to drill and your wires will arrive just by the battery.

 

Good Luck!!!

[08fusiondriver]

Maybe i wasn't clear enough, The white plastic cap taht im talking about is designed for this.... When i put my remote start, i pass the wire threw that cap and same thing for my 12 volts wire to the trunk.... it's fairly easy to drill and your wires will arrive just by the battery.

 

Good Luck!!!

 

Is where it is circled in red where you mean http://www.fordfusionforum.com/index.php?a...=si&img=163 ?

 

Also, would something like this be any good http://www.crutchfield.com/App/Product/Ite...FB4&tp=1283 ?

[DFA]

i was able to poke my wire through using a coat hanger took some work but it went threw and didnt need to drill anything.

[08fusiondriver]

i was able to poke my wire through using a coat hanger took some work but it went threw and didnt need to drill anything.

 

What gauge wire were you able to poke through?

[dailydriven]

i cant find the white plastic cap???

[grb040]

The 2009 model does not seem to have the white plastic cap in the same location. Looks like they moved it?

[Arminium]

The 2009 model does not seem to have the white plastic cap in the same location. Looks like they moved it?

 

Nah dude its there i just found mine. YOu have to pull out the oval and the plastic is right behind it. If you look at the posted pic, look in that area and remove the precut oval. Behind that is the plastic cap. =)

[Arminium]

Nah dude its there i just found mine. YOu have to pull out the oval and the plastic is right behind it. If you look at the posted pic, look in that area and remove the precut oval. Behind that is the plastic cap. =)

 

and yes i was very redundant there. installing sub in rain right now haha

[2009_AWD_V6]

i cant find the white plastic cap???

I personally plugged into the "spare" (19 I think) fuse slot for my trailer wiring. You have to leave the cover off (put it in the glove box) and took a 3/8" eyelet and cut 2/3 of th loop off so that all that was left was a "flat blade" on one side that is th size of a fuse blade and pushed that into the "power" side. I then atatched an inline fuse then crimped it to my 14g wire to the trunk. It was easy to do and didn't involve any drilling or digging to fish out a wire in the engine compartment. I had tried that first and got "frustrated" and went this route. Pretty happy with how it worked out.

[MarkH]

I have the 2010 Ford Fusion SE and in the process of installing an amatuer radio. I have been trying to figure out how to pass a 10 gauge wire pair from the cabin to the battery. I see a semi-punched oval above the wiring grommet, so if the 2010 is like the 2009 according to prior replies I should be able to remove the oval and then there is a cap to push or drill through and that should be a safe location. Can anyone confirm this for the 2010 model before I start pulling things off and any other helpful hints?

[gtrplayer1234]

Under the steering wheel, by your foot, you'll find on the fire wall a hole with a whtie plasric cap in it.....

Just drill into this cap, don't need to remove battery for that.

I have a 2006 Fusion & I am looking to add an amp and a sub. I found the white plastic cap you referenced. So I drill a hole through the cap and run the wire through that - do I require a rubber grommet to protect it? where within the engine compartment does this come out? Do I need to remove the battery to "find" the wire?

[MarkH]

I have a 2006 Fusion & I am looking to add an amp and a sub. I found the white plastic cap you referenced. So I drill a hole through the cap and run the wire through that - do I require a rubber grommet to protect it? where within the engine compartment does this come out? Do I need to remove the battery to "find" the wire?

 

I popped the plastic cap out (not easy as you have to push on 4 clips simultaneously) and drilled a 3/4" hole through the center (easier out of the car) and run the wire through with a grommet. I should put some RTV or other sealant around it as well to make sure water doesn't get in, but haven't gotten to that part yet. Its pretty tight with the grommet, but not completely water-tight. I have not had any issues yet as its pretty high up on the firewall.

 

A word of warning. I did this myself and when I popped out being under the dashboard it dropped down onto the panel underneath the engine. After much swearing and fishing with a coat hanger I was able to retrieve it, drill the hole and pop back in. In hindsight I should have had someone reach down it it behind the battery and hold/catch it.

[Steve R.]

I have the 2010 Ford Fusion SE and in the process of installing an amatuer radio. I have been trying to figure out how to pass a 10 gauge wire pair from the cabin to the battery. I see a semi-punched oval above the wiring grommet, so if the 2010 is like the 2009 according to prior replies I should be able to remove the oval and then there is a cap to push or drill through and that should be a safe location. Can anyone confirm this for the 2010 model before I start pulling things off and any other helpful hints?

 

We are looking into buying a 2010 Ford Fusion. We will be faced with installing an amateur radio, the YAESU - FT-8800R Any advice/comments/pictures on the install?

[MarkH]

We are looking into buying a 2010 Ford Fusion. We will be faced with installing an amateur radio, the YAESU - FT-8800R Any advice/comments/pictures on the install?

I put in an ICOM IC-208H. Added 45amp PowerPole connectors onto the provided unit wiring. Due to fuse size I had to backfeed the wire from the engine compartment into the vehicle through the 3/4 inch hole I drilled through the white cap. Used a pre-made short cable (ring terminal to powerpoles) from battery to the unit wire. I console mounted it (still plenty of leg room) on the driver side with speaker side out (don't need an external spkr that way). Used a Larsen 2/70 trunk mount on driver side of trunk lid and fed cable behind felt, down side of back seat and along door sill passing under driver seat to console.

 

I could have remoted the control head to the front of the coin box, but decided against it. As your Yaesu has the mic connected to the control head that probaby wouldn't be practical. If you send an email to cheltonpei@yahoo.com I'll try to send some photos.

[Tet]

I realize this is an older thread but I am having a tough time with wiring my amp up. First off, I am not new to wiring and even getting through the firewall, but this is a different animal. I looked through everything I can find, which is rather limited, and I think I have found where I am supposed to go through.

 

First off, I have a 2010 Fusion SEL. After looking at the pictures linked above I could not find that particular grommet. i am attaching a picture of what looks like it is where the clutch would normally come through. It seems like it is a lot higher up than the one in the linked picture. The issue I have is you cannot really see under the hood where this comes out and you never want to drill if you are not positive you are in the right place. I almost just pulled the trigger on it the other day but I decided I would wait and post here to see if I got any responses.

 

I already have the inline converter in the trunk and the ground wire run. Any help would be much appreciated.

 

Thanks.

 

I popped the plastic cap out (not easy as you have to push on 4 clips simultaneously) and drilled a 3/4" hole through the center (easier out of the car) and run the wire through with a grommet. I should put some RTV or other sealant around it as well to make sure water doesn't get in, but haven't gotten to that part yet. Its pretty tight with the grommet, but not completely water-tight. I have not had any issues yet as its pretty high up on the firewall.

 

A word of warning. I did this myself and when I popped out being under the dashboard it dropped down onto the panel underneath the engine. After much swearing and fishing with a coat hanger I was able to retrieve it, drill the hole and pop back in. In hindsight I should have had someone reach down it it behind the battery and hold/catch it.

[MarkH]

I realize this is an older thread but I am having a tough time with wiring my amp up. First off, I am not new to wiring and even getting through the firewall, but this is a different animal. I looked through everything I can find, which is rather limited, and I think I have found where I am supposed to go through.

 

First off, I have a 2010 Fusion SEL. After looking at the pictures linked above I could not find that particular grommet. i am attaching a picture of what looks like it is where the clutch would normally come through. It seems like it is a lot higher up than the one in the linked picture. The issue I have is you cannot really see under the hood where this comes out and you never want to drill if you are not positive you are in the right place. I almost just pulled the trigger on it the other day but I decided I would wait and post here to see if I got any responses.

 

I already have the inline converter in the trunk and the ground wire run. Any help would be much appreciated.

 

Thanks.

That is the correct spot. It is fairly high up and as I said I removed mine, drilled and then replaced it, but its hard to get out with 4 clips on it and mine popped out (I was working alone) and fell into the cover under the engine that I had to fish out). If you shine a light from the inside you should be able to find it looking in the engine compartment (preferably a dark environment) to see if there is anything in front of it. There wasn't on mine, but you should drill slow just to be sure. You need to have 3 hands to do this it seems.