This unit plays music from your iPhone using the external CD changer port to communicate with your factory radio. Next and previous song and charging are also done through the USB connection
Music from your iPhone through the USB port. No other connection is needed.
Next and previous song control from your Radio and/or steering wheel controls.
iPhone charging through the USB port.
3.5 mm aux port on the box. Will probably never be used but its there just in case.
Posi-Tap EX150B – This product simplifies connecting the ground cable that is required for installation. See product for instructional video.
Enfig RRK4 – keys required to remove the factory radio.
This adapter connects behind the radio on all cars.
A3/S3/RS3 2006-2007 Compatible with single CD and 6 CD and Cassette radio. Not compatible with the RNS-E navigation radio.
A4/S4 2004-2006 Compatible with single CD and 6 CD and Cassette radio. Not compatible with the RNS-E navigation radio.
A6/S6/RS6 2002-2004 Compatible with 6 CD and Cassette radio. Not compatible with the RNS-E navigation radio.
Allroad 2002-2006 Compatible with 6 CD and Cassette radio. Not compatible with the RNS-E navigation radio.
Peter L.verified owner
Peter L. (verified owner) –
Oregon, United States
Installed easily, works as advertised. Perfect.
Gabriel M.verified owner
Gabriel M. (verified owner) –
The kit works exactly as described. Installation is very straightforward. The audio quality through the USB port is top notch. For anyone installing I would recommend tucking the USB adapter unit in the driver footwell near the HVAC vent. The USB cable can then be easily guided up to the center console area without any drilling and the whole system is totally concealed. I would recommend this kit to anyone.
Eric (verified owner) –
Ohio, United States
Install was extremely easy. The little tap con recommended for the ground was the best suggestion ever! Videos make it simple to install the the sound is great now from the car.