Amp / Subwoofer Power cable install

[willj12]

Hi guys and girls I am very impressed with this forum, you saved me some money with installing my new headunit in my 2009 Polo
Hopefully someone will be able to help me with running the power cable from the engine to the boot.
I have looked at the grommets in the firewall and there seems to be an unused one in the top right of the car, I presume this would come out behind the glove box?
If anyone has any tips I would be very grateful!

[vwthunder]

There is one below the glovebox, which you send the cable out and run it through the inside of the front guard, coming out near the battery, I will try to get some pics

[willj12]

Pictures would be amazing if that's possible!

I think I know the one your talking about, if I look in the passenger foot-well it looks like there is plenty of space for the wire but if I look at it in the engine bay it look like there is no where near enough space, I'm using 4 gauge wire if that makes a difference, I'm probably looking at the wrong thing though

[kaanage]

See this post.

This way, you can run a 2 gauge wire into the cabin. I had the wire come out where the window washer hose runs at the very rear of the engine bay. You only have to remove most of the screws holding the front inner guard on from the rear to just in front of the strut and you don't need to take the front wheel off to do it.

Pull the passenger side kick panel off 1st and run the wire through the unused grommet, up along the with the washer hose and then work it through the unused grommet at the front of the mini bulkhead, then run across the top of the strut mount to the battery. Takes about half an hour (when you know exactly how - it took me 2 hours as I kept finding better ways to run the cable).

[vwthunder]

[vwthunder]

Take off the left wheel arch lining and run the cable through and it will come out of the hole near the battery (as you can see just behind the headlight)

I got this info from another forum, cant remember where.
I know you can see it inside the door, but you can hardly see it with the door open, no one will ever know, and I am quite fussy too

[kaanage]

I'd only do it that way if you found you couldn't get the cable up alongside the washer hose.
I probably would do it with gauge 2 since it gets a bit stiff and definitely with gauge 0 if you were going to run a 2nd battery but gauge 4 cable will easily go up the way I described it

[vwthunder]

I couldnt find another way to do it, I searched the forums and found the info on how i did it. There might be better or easier ways like how Kaaanage did it, the good thing about my way is it comes out right at the battery, the other way is good too but you can probably see the cable as you have to run it through the engine bay.

Now you have 2 choices

[kaanage]

Personal preference I guess. I get a bit nervous about running cable down where I can't see it well. I'd put cable protector around the part that goes through the engine bay hole to the wheel arch for piece of mind (my fuse is on the strut tower so I have cable protector back to the battery)

[willj12]

I DID IT!!!
It only took me 6 hours to do :S but I got there in the end, I tried kannage's way first but couldn't for the life of me find where the cable was coming out so two hours later I tried vwthunder's way and three hours later (Sunday roast included) I had got the power cable to the amp and sorted the ground out.
After that it only took an hour to get the rest of the cables from the headunit and into the boot.

Thank you all so much for your help!