If you're doing it by hand try something like SRP or Carlack AIO. If you have the T-cut, try each on the bonnet and see what difference it makes visually. The Tcut in my eyes is a polish anyway so use it along with other polishes to test, not before or after.
A good going over with any polish should sort it out. Wax doesn't add a lot to the finish, its all in the prep work. The wax is like the icing on the cake. I'm sure Rubbish boy can sort you out in the department.