started the car this morning and the radio came on as normal but heard a clicking sort of noise coming from the rear speaker area and the quality of the sound went terrible like a 80s ford cortina lol!!!drove into the local maserati dealership and managed to get a service tec who said will need to book it in ...10 mins later he started the car and all was fine again !!but still booked in for 2 weeks time thinks it might be a temperemental amp????anyone got any ideas???