Buy recommendation for car and home

Since the Command System in my W211 only one Bluetooth connection builds to call, I was looking for a way to play music from my iPhone 5 without constantly connect the AUX cable.
The connection works well and my iPhone builds even parallel both compounds. (Phone function via the car radio and music connection via the B-Speech.

The article was, as otherwise provided by Amazon accustomed very quickly.

Of course, can be the receiver with my "old" stereo link, the property has no Bluetooth function.
This I saved also buying unnecessary additional speakers and can thus listen to the music from my iPhone and iPad wireless on my system.

From me there is thus an unqualified recommendation to buy.