I agree that it is very difficult to be sure what you are buying!
Unless Steve sells a suitable single cable (but his website is down until tomorrow), you could go for the following 'safe solution'.
Buy something like this: link
And then this: link
Thus you can be sure to connect the second cable to the two phono sockets that are connected to the output connections of the DIN.
Location: Warwickshire, UK
My B&O Icons: