Yeah...instead of being a bandpass enclosure (one sealed chamber, one ported chamber), you could turn it into a very poorly tuned regular ol' ported enclosure.
for a really makeshift enclosure you might like better than the bandpass, take them ports out there barley glued in, and put a piece of wood to make it a seled box. then take the plexi off. We did that on ym friends car
for a really makeshift enclosure you might like better than the bandpass, take them ports out there barley glued in, and put a piece of wood to make it a seled box. then take the plexi off. We did that on my friends car