The good lady recently bought me a premium subscription to Spotify. Amongst lots of new features is the ability to play music on my mobile streamed from Spotify, which, when I connect it to my 3G Mifi, means I can stream almost any album from wherever I am.
Add into the mix the fact that I currently drive a Mercedes Benz A-class with a very nice music console and a 3.5m jack input for aux. input. If I run a short 3.5m stereo cable from the phone to the socket I can get streamed audio straight into car. However, there would appear to be a slight problem. For the past few weeks the setup has been producing a lot of feedback. The sort of engine noise, electric switch style feedback you used to get on old cars with no suppressor on the antennas or speakers.