hey,
i need a cable adapter to use on the airplane. the airplane's headphone jack is two separate jacks (one left, one right), so i need an adapter that is two males becoming one female (to insert my own headphones). i wanna use my own headphones instead of plane's, so is there one available?

an example is like this:
http://cgi.ebay.com.sg/Aircraft-Headphone-...4QQcmdZViewItem

got ar?