Having the dealer pick up my 720 spider tomorrow. It’s possessed. When I open the door or the frunk in the AM I get static through all twelve speakers at maximum volume. Sounds like the car is eating itself. Seriously it is so loud it will make your heart stop. Sometimes it happens when I’m driving and I swear it makes me almost drive it off the road. Sometimes it last about 5 seconds. Sometimes it lasts until I disconnect the negative battery post. Anybody experienced similar and know a fix? Thanks!!