Is there a way to play music from your smartphone in an
Audi A6 from 2008?
I am looking for anything, such as devices or other gadgets, that may make this possible. I have looked all over the web for a solution to this.
I guess if you'd like a cheap, but functional solution you could buy a so called FM-Transmitter.
These are usually fairly cheap: 10$ / 10€, and aren't too bad.
Depending on the brand, you can connect your AUX cable, SD Card and some may even have bluetooth.
Otherwise you could buy a 'converter' (A2DP for Bluetooth) from your Audi dealer ( or usually other certified shops), that you can connect to your CD Changer/Navigation. You can then connect your aux cable to that.
However, the second option is more expensive (I believe around 60€, and depending on model/year/connection port it can get more expensive) and has to be installed. The first option is simply 'plug and play'.
Audi sound systems like BNS 5 and RNS-E have a line input. This is part of the Quadlock connector on the back of the unit.
You can get Aux in adapters that plug into this connector. The standard ones provide a 3.5 mm jack, others also provide an iPhone connector.
This PDF can help you identify which system is installed in your car.