I have a great cable that plugs into the bottom of the iphone an has two cables - a USB for charging via my cig. lighter adapter, and an eigth inch audio cable to plug into something to be able to hear sound. I do not have such an input on my Honda Van. So I was using a cassette adapter in the head phone jack. Anyone know of a cassette adapter that has a jack on it to plug in such a cable. I know I could get an adapter with double female ends, but thought I'd ask to keep things more simple.