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It's basically a 12V feed to the stereo. This will be already present on other pins in the quadlock but the OEM stereo does not need this to be wired in to power up. Other OEM units, such as the RCD510, won't even turn on if there is no 12V feed to this pin.
See here. Pin 16 (section 3).
Ive just purchased the 310 on ebay to upgrade my pre 2011 head unit in my leon. Can anyone recommend a good match faciat? The 2011 leon models seem to have the silver fascias now? Mine is just black/grey.
Should I also ensure I get the numeric code from the seller?
Many thanks
Rich
Hi Jarre
Thanks for the reply....
Yep just done that..contacted dave with VIN. I will need new fascia as I have the 2010 Leon with the previous system. Not massive upgrade but for £30 on ebay cant go wrong. Once ive done this upgrade willlook into 510 once that gets cheaper....im still awaiting reply for code confirmation before passing over the dosh. Cheers