6x9 might be designed with a trunk underneath them, but when the speakers are dangling from the door while powered up playing something, the second they get placed within the door panel the depth and richness of the sound increases many fold.
While I would not choose this route again, both of my White painted doors, are covered with peal and seal, the butyl roof flashing material, on the exterior metal skin and much of the interior skin. I would not do this if I lived in the south with a black painted van, but instead pay significantly more for a product designed for sound dampening
The doors sound much better and quieter when slammed home, and it also improved the sound quality of the speakers.
My 6x9's screw into a wood enclosure just bigger than the 6x9, partly as the hole for the 6x9 was larger than the 6x9 screw hole pattern, secondly I wanted to raise the speaker a bit so it was not pointed directly at the step, but above it. I was considering making a wood surrounding ring which would both raise and Aim the speaker cone upward, but honestly, it sounds good enough, better than most stereo systems I hear in other vehicles, unless they have been set up with an Audiophile with some bucks.
My ears are kind of screwed up from surfing so much cold water for the last 30+ years anyway. I thnk in some ways this constriction of my ear canals requires a bit more fidelity to not get garbled. Likwe in a noisy room I cant hear everybodys conversation but the words from the person talking to me. I can also seemingly echo locate noise sources better with my eyes closed, kind of like how a smaller aperature on a camera has a better depth of field, focusing on things both far and near, where a wide aperature has a very narrow band of distance from lens that is in focus .
I am absolutely stunned by how well this single speaker, that my neighbor owns, sounds with my phone plugged into it.
It blows away my van's stereo, and that is usually where I go to feel my music, where those little fingers of music penetrate and tickle the inside of my skull and make everything allright:
https://www.altoproaudio.com/products/ts212
I was so doubtful a single speaker could fill a space with sound a well a it does.
I've not tried it on my 400 watt PW inverter at milder volumes to see how many amps it actually consumes at 12vDC, and will not try it on my 800 watt MW inverter as I cant afford to replace it.
