[TenTec] Cooling an Omni VI?

[Darrell Gordon W4CX]

Hey guys..  Does anyone have experience/suggestions on how to add cooling to
an Omni VI?  I need to pull air through the side vents and out the back, but
I'd rather not make any irreversible mods to the case.  Need something quiet
but efficient.  Reason is rig is mounted in a relatively tight cabinet with
only 1/2 inch of clearance on the sides and top.  (I know, not good
practice, but unavoidable in my shack).    Thanks for any help DE Darrell
W4CX