Do not need to by HD hdmi1.4 version cable if you already have.This cable costs USD10

Do not need jailbreak or install software, plug-and-play. Sounds can also synchronize to TV. car dvd manufacturer 
•  Effective Business Presentation: Easy play PPT or Video; Totally get ride of advertisement trouble when see TV; Karaoke and download Karaoke application
You can enjoy Karaoke in home after connect to TV.

Technique parameter:car multimedia