alright.. I bought this http://www.yopool.com/white-usb-av-tv-rca-audio-video-cable-for-apple-iphone-3g-ver-22-p-3835.html I planned to use it with my DVD player in my car. So the audio will go to my car speakers while I am running MXtube or during phone call. Despite of the quality, it works fine. However, it seems like I was only able to use sound and AV when I am running ipod stuff, ipod music and ipod video. I would like to have AV and audio when I am running application, such as, XGPS and audio out during phone call.