My 06 seems to ride a little rough. I can feel every bump in the road. The steering wheel does not shake side to side but the ride is just rough. What should I do for a smoother ride? When I go over a speed bump with the widows down I can hear the sound of the shocks hissing. Plus the car sits a little low in the front. Also I hear a slight tapping noise when my car is at a stop. When I rev up the engine the tapping noise does not increase in speed with the rpms. Honestly it sounds like something is loose but I cant hear it outside of the car only inside. Its not loud but I can hear it when I turn down the radio. Any suggestions on these two problems?