X5 Stereo Replacement

[akwoods]

Hi, I have a 2003 E53 X5 diesel and the stereo display died, so I purchased a replacement off eBay. I know it’s a cheap after market unit and not great quality, but it has Bluetooth for my phone and a working display so I went with it.....and it is missing a cable. The write-up on eBay says that it may require what they’re calling an “extension cable” but when I contacted them they charged me $90 and I’ve been waiting since November for it to arrive. I have included screen shots of the cable connector I need, I was planning to try and order it through JayCar or somewhere, but I don’t know what it’s called. It’s the blue plug on the right of the second photo. If anyone can tell me what it’s called and/or where to get it, that would be great, thanks.