@ERG80 you know about this, right?
https://absolute-wits-end.com/quarter-panel-mount-80-series-right/
https://forum.ih8mud.com/threads/wits-end-accessory-mounting-quarter-panel-need-input.973860/
Another interesting thread--also with sound level meter tests...
https://forum.ih8mud.com/threads/more-evidence-why-the-lx-is-quieter-than-the-land-cruiser.968566/
Didn’t know about that one, thanks! One I’m thinking of, I think the guy made them out of Fiberglas. Might have been a double mount near center dash, too.
Saw these, can't find 'em now. One thread had a colorful photo of a sound meter in the front row, dialing things in. The other had custom made speaker mounts for tweeters; I think they were on the A pillars.
Anyone know where to find these?