I had to chime in on the light bar conversation. Everyone builds their jeep for their own purpose and mine was built specifically for hunting in Idaho/Colorado every fall/winter. We hunt between 7000-9500' and typically are on logging and forest service roads starting at 4am. Back in the day we used to run KC highlights and handheld spotlights (yes I am dating myself to the early 80s). The LED lights are awesome and have changed night to day and reduced risk and increased safety. Getting in and out, setting up camp, and being able to really see what's ahead makes them invaluable.
Regarding the whistle; I took a 60" piece of aluminum door molding you buy at Home Depot and used 3M Velcro to attach it to the bottom of my 50" Rigid light bar. The whistling is caused by the air that goes across the cooling fins on the bottom of the light bar as it meets the air coming up from the windshield. By adding the 2" aluminum strip with the angled portion pointing down, it prevents the wind from going directly over the bottom fins therefore eliminating the whistle. The airflow over the top and rear of the light bar provides more than sufficient cooling and it removed 99% of the whistle. It really works well and have had it on my JK for 3 years now.
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