Usually after I crack a gnarly fart.
Got a link for the rear window visor you have?Every day. I vape while I drive (I know...) so if I open the rear and crack the front it goes right out. Alternatively, if I'm on the freeway I turn off air recirculation and crack the rear and it will blow through the cab and out the back so I don't have wind noise deafening my ear.
Also my dogs love it. Can't do it while on dirt trails or if it rains, though. I have window visors for the rain.
Got a link for the rear window visor you have?
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