Recently mounted a JBL Charge 3 speaker to cooler using hose clamps covered with 3/8"vinyl tubing, PVC pipe, and RAM mount. Speaker is IPX7, can be immersed in 3 feet of water and has Bluetooth. Sound quality is very good. Reasonably loud for its size. Mount cooler to tramp with shock cords through grommets. Sorry about prior attempt to post as picture did not stay on site. Thanks Damon for your help if this works. Click on lower image if you want to see a lager pictuer
Edited by spoulton on Jul 06, 2018 - 09:12 PM.