The GEZ is sort of the television and radio police, it used to be if you owned a tv, computer or radio (including car radio) you would be subject to pay 17,03 Euros monthly. Since 2013 everyone pays, too many people pretended not to have a television and, well, it's 2014 c'mon!
The Germans pay 17,98 Euros for tv and radio stations which are deemed essential, sort of a tax for the right to information. First you buy a television, then most people won't get many channels unless your building offers cable in the price of your rent. The other option is to buy an antenna or some cheaper satellite receptor thing... yeah that! Even then when it's bad weather outside or to many wifis running around the house the reception is often terrible.
What's cool about the car radio is that every now and then you'll get traffic status and accident reports based on your location. It can get annoying if you're listening to a really good cd and just before the solo this guy with a thick German accent comes on just to tell you that the A9 is congested (stau).
I'll be working on an article about how much mail Germans get, this is getting ridiculous, stay tuned and if you meet someone today and have nothing to say to them, why not tell them about my blog and how I write funny anecdotes on my experiences in Germany, because sharing is caring!