Auxiliary

There are too many electronic in this world right? Today I received some DVDs from Blockbuster but I couldn't figured out on how to connect all the auxiliary at the back, I don't know what happened but as what I remember it used to work, I had to yell at my husband since he is the one who is an electronic technician, but then he told me it was just a very easy job and he doesn't understand why I couldn't do the thing, oh well, he ended up doing it for me anyways so I had a cool relaxing time watching the 3 movies today.