Remixed from meaargee's design.
Increased the inner ring diameter to prevent it rubbing on the speaker.
Added 8 holes for speaker mounting for both left and right side doors - same print will fit both sides with some rotation to align the holes.
I used these to mount Pioneer TS-G1320F speakers (5.25 inch)
Some foam tape on both sides to seal.
Jimny_JB74_Speaker_Spacer.stl | 173.5KB |