BMW 3(E90)/5(E60)/6(E63) 2003-2010 CCC AUX ActivatorThis is an aftermarket AUX activator that can active the BMW 3(E90) 5(E60) 6(E63) 2003 2010 CCC with AUX IN function, if your original car does not have factory AUX IN audio port, this kit will help you to code the car and add the AUX IN feature, after that, you will be ok to install the android screen to the car, the sound of android screen will go through the AUX IN and with sound in speakers. Why develop this kit? Before this kit was coming out, if