1. Can connect external audio source. 2. Backward compatible with Bluetooth 2.0 3.0 4.0 versions 3. Support MP3 audio format as well as WMA, WAV and other high-quality audio formats. 4. Great experience to enjoy music from your phone when driving. 5. Easy to install. 6. Black: Ground GND; Red: 12V ACC 7. Fits for Opel CD player, the host needs to have AUX circuit to use. CD30 MP3, CDC40 OPERA, CD70 NAVI, DVD 90NAVI in Astra models: 2004-2009; Zafira: 2005-2011; Tigra: 2004-200
