Throwing things here and looking into them. Will do an official write up later.
Goal: Lower power consumption
https://www.amazon.ca/SoundOriginal-Universal-Motorcycle-Electric-Waterproof/dp/B072QBNTSM/
12V, 1.5A, 105dB
https://www.amazon.ca/Speaker-Waterproof-Electric-Motorcycle-Scooter/dp/B07GH7HNDC
12V, 3.5A, 115dB