I have a 2014 Porsche TTS with the Burmester stereo.
Few tweaks I did - disconnect the center dash speaker, replaced the corner dash tweeters with Focal tweeters, added an iPod Classic with 5000 AIFF lossless music files that is connected to the stereo via USB input in the glove compartment.
Also, installed these GT2RS intake scoops on my Porsche TTS!!
Also just had this steering wheel built to my specs and will be receiving it shortly.
I'm getting pretty good switching out steering wheels - LOL....