Thanks I wired my Tesla wrong, this helps to find which is out of phase basically deleting bass
It's very good to hear that the video serves this purpose 👍
Maybe this version will help you further with testing:
ua-cam.com/video/GBEkit0ZSDM/v-deo.html
0:06 ❤🏆🏆🏆🏆🏆Bose