What is this called and where can I get it?

[Flam98]

Hi FOlks,

This foil or aluminium lined sheath is used in Toyota's to cover the wires running from the Reverse camera to a connector at the front of the vehcile. The sheath starts a little bit after the camera. As far as I can tell, there are four wires and one wire with no insulation running inside the sheathing the other wisres are in. I've attached an image that shows the Red, Green, White and Black wires, the stripped wire and the sheathing that covers it all. Does anybody know where I can get that foil lined sheathing? What is the purpose of the stripped wire? I am presumming it ran the full length of the AV cable, but wasn't connected to anything on either end.

I was going to build my own repalcement wires, wrap them in tin foil, and the cover them with shrink wrap like in the image attached. Would that work?

 

[brianmoooore]

It's a readily available 4 core screened cable. Why are you trying to recreate it?

 

[Flam98]

It's a readily available 4 core screened cable. Why are you trying to recreate it?

Hi Brian, thanks for letting me know that, one other question at the end of this. As of a result of a head injury in 2013 I've a intermittent memory problem, and I often can't remember the name of the thing I am trying to find, so just identifying it as 4 core screen cable is a help to start with. I am installing (as an upgrade) an OEM head unit and reversing camera into a Toyota Aygo. The Aygo I am fitting them to was a lower spec Aygo, and though it had the wiring for the head unit, it didn't have a cable running from the drivers footwell to the boot for the camera. I'm neither a mechanic, nor am I an auto electrician, but I've always managed to get by. I'm doing the job for my mum, who still drives at 86. Her old Aygo recently gave up, and I've replaced it with the exact same model, I feel the upgrade of the head unit would be a huge benefit to her. She comes from a large family with 10 siblings still living 4 of those 90+ and still driving. So whatever help I get it's bloody well appreciated.

I got an OEM head unit and OEM camera from a wrecked Aygo, and the camera came with about 500mm of cable after the connector. The OEM sheath doesn't go the whole way to the connector, as per the image attached, and it was unclear to me if the stripped wire would or should be connected to anything, like a ground. The green cable on the original plug is the ground wire for the camera, but I don't know if the stripped wire performs some kind of additional ground role, or if it is unconnected. It's definitely not connected at the camera end, I wasn't sure if it should be connected at the footwell in the car.

I was given the attached wiring image to help me with what pin wires on the camera side go to what pin wires on the connector at the footwell side. This image shows the ground as not being sheathed, though the OEM cable has it sheathed. And the sheathing dotted line seems to say the wire is sheathed close to but not the whole wat up to the connector. This is what I can see on the OEM cable at the camera side, and while I might have guessed it correct, it's a guess, and I'd be dead grateful for a confirmation of what is correct. Thank you for your original answer, and thanks for any future wisdom.

 

[brianmoooore]

The screening is there to prevent interference to the signal from the car's other electronics, and would normally be grounded at one end only (so that a current doesn't actually flow through it). The bare wire runs along with the foil simply to enable a connection to be made to the foil, and to lower the foils impedance a bit, since the wire is a better conductor than the foil.
This would probably be suitable: https://cpc.farnell.com/pro-power/a...ened-alarm-cable-022m�²-white-100m/dp/CB20044 although I appreciate you wouldn't want 100m of the stuff.

 

[Flam98]

The screening is there to prevent interference to the signal from the car's other electronics, and would normally be grounded at one end only (so that a current doesn't actually flow through it). The bare wire runs along with the foil simply to enable a connection to be made to the foil, and to lower the foils impedance a bit, since the wire is a better conductor than the foil.
This would probably be suitable: https://cpc.farnell.com/pro-power/ac-t3-4c-tcca-scr-wht-100m/4-core-screened-alarm-cable-022m�²-white-100m/dp/CB20044 although I appreciate you wouldn't want 100m of the stuff.

Well that's kind of a bit nuts. I don't hang about waiting for help, and it's really when I am stumped that I ask. When you medntioned it was 4 core sheilded I googled that and eventually ended up on Farnell's website, and after looking at a lot of the product options I settled on this the one I've provided a link for, and I could buy it by the meter, but when I tried to check out Farnell were adding 15 euro to the transaction for handling, bloody 15 squid for handling? I need less than 3 meters, and I'd buy 3 meters at about 8 Euro, with 7 euro shipping, and then they slap on a 15 squid handling charg, bloody criminal...-ish. https://ie.farnell.com/belden/9534/multicore-4-core-24awg-chrome/dp/1218692, Farnell's handling fee doubles the price. I am not being a skin flint here, half of my objection is about the charge, and half is related to affordability, a really long story on that one.

At my level of knowledge it looks like both cables are similar, but there is a big a price difference. Is it that farell are having a laugh?, or are there differences in quality cheap but OK vs expensive and guaranteed high quality, or are they just two different products for different jobs?. There's kind of 2-3 questions in that. Thanks for all your feedback, and I'm not sitting around on it. I try to buy the best quality of anything I buy to avoid the problems cheap products can come with, but I'd be blessed if I can buy the cable by the metre, so if you know anywhere I can do that I'd be grateful for the heads up. I've been searching but I've kind of drawn a blank, apart from Farnell. Thanks again Brian for your replies and good info.