I just realise I posted this thread in the wrong section. Sorry mods. Can it be moved? Or merged with this:
http://986forum.com/forums/boxster-parts-sale-wanted/34308-cdr-220-line-out-pigtail.html#post486535
There seems to be variations of these cable adapters, and its like a jungle. I did find a supplier in Germany that have the connectors you can use to build your own, if one is into that sort of thing:
Auto Adapter Stecker Kabel
Otherwise, there are pre-made cables available there and other suppliers. If anyone is looking for one in particular, I can share links to various suppliers.