Brackets to mount an Alpine PWE-S8 powered subwoofer in the trunk of a Tesla Model 3 SR+ where the factory subwoofer is located in other trim levels. I mounted the subwoofer to point into the rear fender cavity ("corner loading").

Others may wish to try pointing the subwoofer facing toward the trunk. Link to Onshape CAD model is provided if you want to modify the brackets https://cad.onshape.com/documents/7eee5479725a9f812e38b755/w/e41467ff2cd1122815176e48/e/6bb3747dd3834642ead1e41e

Information on electrical wiring can be found on the Tesla Owners Online forum https://teslaownersonline.com/threads/guide-model-3-sr-aftermarket-to-enable-speakers-and-subwoofer-upgrade-install.13059/

Print instructions

3MF file provided with suggested print orientation and settings. Printed with PETG to handle high car interior temperatures during the summer.