Just mounted this to our ClubCar. Mounted to the rear of the roof, ran the wired down through the roof support and into the battery compartment. Looks great.

https://www.amazon.com/ECOXGEAR-SoundExtreme-Amplified-Powersports-Waterproof/dp/B08FJF78WT/ref=sr_1_3?crid=ULAOGEU4BVJW&keywords=ecogear+waterproof+bluetooth+speaker&qid=1647314144&sprefix=exocgear%2Caps%2C230&sr=8-3