I have a 99 vert mustang. on the driver side the back window making alot of noise when i drive. it is like a ratteling noise. it happens when the window is up regardless if front window is up or down. however. if i lower the back driverside window the ratteling stops. i am thinking it is just loose. is there any way for me to get to it to check it out? o i forgot to mention i have a roll bar there and i am not really wanting to remove that.. thanks in advance