have tried and failed to remove the whine emminating from the stereo , its definately being effected by the alternator , i have a new suppressor on it and one on the coil , so i am stumped as to what to do apart from take it to uplands stereo and pay a fortune for them to fit /fix . has anyone had any problems installing a stereo in the v8 model? i dont know enough about the way it interacts with the discos own amps etc , could there be a conflict between a new head unit and the way the original set up is fitted ? cheers phil