for example:

Amazon

Amazon

does that piece laid ahead of the door crack reduce noise from turbulence over the window ? Also planning a mirror assembly removal for gauging that area's wind tunneling ...we have color TV

 

this only goes on the door not the front panel. No does not really quiet the noise, but does help when the windows or cracked open a bit. Does not fit my 11 E450 they really do not do much but I think they make the thing look a little better?

 

Have a set of those on our 04 Ranger and they are very good at keeping the rain out when the window is cracked open an inch or so.

 

I don't have them on my van but from what I recall on the cars I've been in, they don't help with noise. Also the "tape on" type may not stick for more than a year or two, none hold up to hail well.
If you have a lot of wind noise, remove and check behind the door panel for a thin plastic sheet that's supposed to be there, taped to the metal. Should help with some noise.
Color TV in your van?

 

I'd go with the Ventshade brand prolly. Had a set on my Dodge Ram 3500....for a lot of years. They cut down noise if driving and the windows cracked, but better for leaving them cracked when it was raining.

 

I have the Ventshade ones as well, no problems after at least 10 years. I bought them so I could crack the windows while raining, never gave wind noise any thought.

 

I have them on every vehicle, keep's the rain/water out mostly with the window cracked open, does help with wind noise.

Check these out, the last one's I bought -

JDM Vent Window Visor 2pc Wind Deflector Ford E-150 E-250 Econoline 92-04 05 06 | eBay


There is some double face tape on the one edge, you roll down the window, insert them in the window channel, roll the window up and done.