yea, my antenna mast broke too, but i replaced it. it'll eventually happen to all cars with a telescoping antenna like that. not really an accord only problem

are you talking about that sort of buzzing sound you get if you rev the engine at too low an RPM? i HATE that. i saw someone post one time that putting rubber washers on the bolts that the airbox is mounted on will solve the problem.. consumerguide reports that

"The gasket for the midexhaust pipe sticks, causing a buzzing noise."

could that be it?