C5 X7 amplifier power cables, trunk ground point

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gab24
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Joined: 18 May 2026, 20:27
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Re: C5 X7 amplifier power cables, trunk ground point

Unread post by gab24 »

Wow, thanks for answering !
By the way, I managed to have a look behind the steering wheel. I've found 2 rubber grommets but when trying to pierce both ofthem with kind of a needle, the tool is blocked shortly after. As if there is no way to pass through without drilling.
Did you drill through ? Maybe my car model is a bit different?
Regards.
Gab
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myglaren
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Re: C5 X7 amplifier power cables, trunk ground point

Unread post by myglaren »

Can you pry out the grommets and see what is behind them?
gab24
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Joined: 18 May 2026, 20:27
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Re: C5 X7 amplifier power cables, trunk ground point

Unread post by gab24 »

Acces is realy difficult. I'have done this for the lower one.I saw grey foam (thin) and behind something hard to the touch (with a big needle)
raqall
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Joined: 02 Feb 2020, 09:14
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Re: C5 X7 amplifier power cables, trunk ground point

Unread post by raqall »

My car is Left-hand-drive, 2.0 petrol.
Take a look: the cable I'm holding with my thumb is the one leading to the amplifier, you can see how it enters the firewall grommet.
I also took pics of how I installed the fuse, maybe this brings any value to you (in the ECU compartment, I've removed battery cover and the ECU cover to take the pics)
I don't remember if I had to drill, I think the grommet is quite thick so its not really possible to pierce it with a needle, maybe try removing it with pliers first to take a look.
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gab24
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Joined: 18 May 2026, 20:27
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Re: C5 X7 amplifier power cables, trunk ground point

Unread post by gab24 »

Many thanks for the pictures!
I'll look at that soon.
Again many thanks for the time you took to respond to such an old post, and so quickly!
raqall
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Joined: 02 Feb 2020, 09:14
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Re: C5 X7 amplifier power cables, trunk ground point

Unread post by raqall »

Thanks! and good luck :)
Feel free to post further if in doubt.
gab24
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Joined: 18 May 2026, 20:27
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Re: C5 X7 amplifier power cables, trunk ground point

Unread post by gab24 »

Hi, after checking my model doesn't have this gromet. (Hdi160 exclusive).
Anyway I managed to pass my cable using the method used in this video :
Maybe this info might help someone.
Many thanks to everyone answering to my messages ! :o