Hello again
Taking the advice to try a simple Y splitter first I went down to the electronics store and obtained a 2 way y splitter and was assured by the assistant that it would work.
Anyway, this is probably some big mistake on my part again

I arrived home looking forward to connect it up, but as far as I can see the outputs and inputs are the wrong way round! There is one marked input and 2 marked outputs. The outputs both have the same ends as the inputs they should be plugging into, and the input has the same end as the output, so in otherwords, no luck
Have I made some idiotic mistake as usual

or what am I doing wrong? Is it possible to buy some simple adaptors or the like to put on the ends?
Thanks once again