Air Vents above radio stack

[MD83driver]

I am going to do upgrade on the radios in my P337H. The radios that are going in will require a height of 14.3", and with the air vents on top of the stack, there is only 13.5" available. If I relocate the vents I will have 15.25" available and this will get me my glove box back. Has anyone run out of vertical space and relocated these vents? If so where to and do you have any pictures. My interest here is only in getting info on the relocation of the vents, Thank you ahead of time.