I've created this speakerbox for this driver:
https://www.aliexpress.com/item/1005005997414703.html?pdp_npi=4%40dis%21EUR%21%E2%82%AC%2010%2C11%21%E2%82%AC%200%2C99%21%21%2177.02%217.54%21%402103835e17092802212921168ee8e8%2112000035405050197%21sh%21ES%210%21&spm=a2g0o.store_pc_aeChoiceSimplified.allitems_choice_2006574665339.1005005997414703

and for this mp3 player:
https://www.aliexpress.com/item/1005005434884904.html?spm=a2g0o.detail.pcDetailTopMoreOtherSeller.3.1620wSrawSraRD&gps-id=pcDetailTopMoreOtherSeller&scm=1007.40050.354490.0&scm_id=1007.40050.354490.0&scm-url=1007.40050.354490.0&pvid=d12f4dc2-9a51-4f1a-8853-413720b25ff5&_t=gps-id:pcDetailTopMoreOtherSeller,scm-url:1007.40050.354490.0,pvid:d12f4dc2-9a51-4f1a-8853-413720b25ff5,tpp_buckets:668%232846%238107%231934&pdp_npi=4%40dis%21EUR%211.64%211.64%21%21%211.72%211.72%21%40211b612517141207024165196e74ff%2112000033062927683%21rec%21ES%21%21AB&utparam-url=scene%3ApcDetailTopMoreOtherSeller%7Cquery_from%3A

It's not perfect as the bent metal plates from the speaker need to be removed and glued into the box but otherwise it's fine.

It doesn't need support.
Print in standing position and place the side with the port onto the print bed.