DBPOWER® Portable Car Wireless Wireless Bluetooth A2DP audio music AUX Handsfree Receiver Adapter with Microphone for iPhone 4S 5 5S 5C (Electronics) 5
Love Amazon community here since you found a way to retrofit airplay. For little money you can control your your system through a common jack via Bluetooth. It is also very well suited for retrofitting in the car. The quality of the transmission is perfect, since no losses caused by the cable. I'm really happy