Anybody know where I can buy a male plug to put on my trailer? The BMW hitch harness plug is a weird round plug, 15 pins or so by the look of things. Can't find one in a trailer shop anywhere here in Melbourne

Cheers + thanks,
Scott.
P.S: It's not available on the above site. I'm just after the plug (want to do my own wiring loom to custom trailer as I am a geek)...