Check the listing for details. CTAAD2A2DP Audi A3 A4 TT A2DP Bluetooth Streaming Interface Adapter iPhone 7. Condition: New, Made in United Kingdom. Listed at 72.87 USD. The new CTAAD2A2DP Connects2 Bluetooth Streaming Interface for Audi A3, A4 and TT provides you with a way to stream music from any smartphone, mobile device or tablet to your original factory fitted car radio via Bluetooth. This device is a must for newer models such as the iPhone 7 that no longer have a headphone jack output. Connecting via Bluetooth (A2DP) means no unsightly wires across your dashboard. These bluetooth interfaces are easy to install and provide a perfect solution. Please note: The compatibility information provided for this Audi Bluetooth adapter interface is provided as a guide only. Please ensure that the make, model and year of your vehicle matches the above and that your car has the suitable connector to take the plug pictured above. There may be more than one Bluet.