Not sure if this will help anyone, I have 08 GT without iPod connectivity. Initially I was disappointed with the sound quality despite adjusting settings, the Bose upgrade in our Porsche was so much better. Eventually my unit died and I had a new 2014 unit fitted by Graypaul. The sound quality is far superior, whether some connections on my original were not as they should be we don't know. At first the new unit wouldn't connect properlpey with iPod but this was diagnosed as faulty glove box port, now replaced and it does now function perfectly (tempting fate here). However I had to purchase the genuine Maserati lead specific to my new unit, apparently there are differences. To get the Maserati lead to work with full functionality you have to have the aux switched off. To use non Maserati lead like the bmw I have you have to have aux on, but you don't get full functionality.