It is easy to use. He was installed ziehmlich quickly e36 with my BMW. In the manual you everything is very well described as a handbook and get on CD. The delivery went ziehmlich quickly. He was ziehmlich quickly connected to my phone, and the app works great. The einziege where you could complain vielleich is the Aux port and the USB on the back and you have to relocate the first time it cost a little time but I did not bother. Would order it to me again and again and can only recommend it
