What are "bonnet tapes" Taffmog? I would suggest checking the steering wheel quick release, it rattles under some acceleration vibrations. Put some masking tape over the splines then fit the wheel. Thanks to P964 for that solution, I think?
Ref the creaking and groaning from the drive belt, do you have an alloy rear drive sprocket or a steel one? If it is an alloy one, that could be your problem at 3500 miles. They last about that long before wearing out.
