Wind noise on 100 series

Evenin' all...

Trying to solve a wind nose problem in my LC100 - very very noisy inside with the front windows open. Reduced if the rears are opened a little and/or the sunroof cracked open. Seems to be part generated by the seatbelt where it goes down the side of the B pillar.

I have bought a genuine Toymota window shield for the drivers side, but I note that it seems to be the bikini type (does not go all the way down the front of the window), yet there are others that are bigger and go all the way to the bottom of the window.

Anyone had any experience with these things - which is better???

Better still - how does one get rid of the wind noise???

TIA

/viz