How to cut down wind noise on a new light bar???

[Johncmng]

Does anyone know how to cut down on the wind noise to a newly installed light bar on a roof rack? I installed a 42in light bar on a Front Runner roof rack and it started to make a low humming noise going about >50mph. Do you guys have any tips to reduce the noise? I tucked the light bar between the rack and the roof.
TIA

 

[spartacus]

Does anyone know how to cut down on the wind noise to a newly installed light bar on a roof rack? I installed a 42in light bar on a Front Runner roof rack and it started to make a low humming noise going about >50mph. Do you guys have any tips to reduce the noise? I tucked the light bar between the rack and the roof.
TIA

Google wind defuser or sound dampers for light bars.

 

[Jon S]

My sarcastic response, take the light bar off