4" Speaker mount/ring for a S211P Daihatsu Hijet Kei Truck. Sits inbetween the door card and door to add additional space for mounting speakers which otherwise would sit too deep and interfere with the window.
Specifically this was designed to work with a pair of Kicker CSC44 Speakers, but should work with any 4" speaker I suspect.
This likely fits other kei trucks of similar vintage, comment up if you had good luck with other makes and models.
speaker_v3.stl | 323.4KB |