Renault Captur grommet through firewall

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HayMaker

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Hi All,

I have a Renault Captur and want to feed a subwoofer power cable through the firewall to the battery. I've pretty much exhausted my googling skills but there doesn't seem to be any how to's on this. There is a partially accessible large grommet in the passenger footwell, but trying to peel off the rubber boot is impossible as it seems to be held in with a plastic fitting. Does anyone know if/how this comes off? Thanks
 
Before you get stuck in, just check that the grommet isn’t actually a multiplug connector - they can look so familiar!
If the grommet is difficult to get out then it’s also difficult to get back in.
If you do find a suitable grommet and there’s some space, I usually pierce the grommet in situ and feed the wire through.....depending on the cable size of course.
John
 
Thanks John. I can't get a picture, but yes I didn't want to remove and then find I couldn't get it back on, and then have water and/or fumes coming in the cabin! I also don't like drilling through something when I don't know what's on the other side. It would be just my luck that I'd drill through part of the wiring loom. I will keep trying to find a different route; I've done this on 3 previous cars and never had as much trouble
 
Jurassicspark said:
HayMaker - BTW, what setup are you going to run?
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Just cheap and basic. I have already fitted a 2-DIN JVC which already sounds miles better (still with stock speakers). I have a Phoenix Gold underseat sub to fit. This Renault is a right pain, not even the stock radio shelf accepts a standard size stereo cage so I had to cut to fit. And the aftermarket facias only seem to come in 9 inch for Chinese units and not 2-DIN size. But, it's in and it works
 
HayMaker said:
Just cheap and basic.
Click to expand...
Thanks.
HayMaker said:
I have already fitted a 2-DIN JVC which already sounds miles better (still with stock speakers). I have a Phoenix Gold underseat sub to fit.
Click to expand...
You’re lucky.

Typically when people change the factory head unit for an aftermarket one they tend to be dissatisfied with the sound quality.

You see, factory head units rely on heavy EQ,ing to sound good with the 5 inch (or so) paper speakers, and once you swap with an aftermarket headunit, the equaliser settings are much different to before and the speakers end up sounding either quieter or much muddier.

Be sure not to crank the volume too loud, your new headunit is capable of delivering more power to the door speakers/tweeters, otherwise you’ll blow them up.
HayMaker said:
This Renault is a right pain, not even the stock radio shelf accepts a standard size stereo cage so I had to cut to fit. And the aftermarket facias only seem to come in 9 inch for Chinese units and not 2-DIN size. But, it's in and it works
Click to expand...
I’m guessing RCA’s from the aftermarket stereo?

Did you lose any functionalities?

Is an underseat subwoofer better than factory speakers? Assuming it’s a modern car.

Depends on your listening experiences though. Do you like waking up the neighbourhood? Or do you like a bit of punch to your music?

You could have still managed with the factory head unit, with a LOC converter, but often the factory units EQ and filter out LFE.

Which can sometimes (although rarely be a PIA.

So why did you change for a aftermarket head unit? What benefit will it provide?

In fact, I had a 12 inch subwoofer once, connected to the factory unit, I had to add a DSP inline to reconfigure the preset equaliser.
 
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The aftermarket stereo did sound muddy and muffled at first, but there are loads of tweaking options on the JVC, not just EQ but car size, speaker size etc. now it sounds good. I like a sub because I like metal, and bass heavy electronic stuff sometimes. In the past I've got just the sound I want by letting the sub handle the low frequencies it's designed for, and the factory speakers take the mods and highs.

Also the main reason for a new head unit was Bluetooth. The Medianav is shocking, only connects to BT half the time, whereas the JVC is seamless every time
 
I have pierced car grommets in the past when fitting car alarms.
I found that a cheap biro case made a handy funnel like tool to feed cable through a grommet.
Use a scalpel to make a cross cut and push the “nib “ end into the grommet.
Then feed the wire into the pen body.
It can be slid over the rest of the cable
 
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