hi, i have a 325ci convertible 2001, i have problems with roof not doing anything ,just a red light when button pressed. past diog said boot sensor error? plus at the same time i lost the lights on door open tone (dong) , rear seat excess buttons at side of front seats, doors open cluster warning, and alarm on/off tone + light amber flash??? i am thinking something like a combined module?????? someone pleassssse help as its had my head pickled for 5 years now!!!!