If you can't find them on eBay it is likely only made available to authorized repair shops if they even have any for JBL. With the thing being dunked in water fully I may not bother buying parts since replacing one may leave 6 others that are bad.
From looking at the specs of the JBL Boombox, it's listed as waterproof, did you check with their support exactly what that means and how it affects warranty?
If you can't find them on eBay it is likely only made available to authorized repair shops if they even have any for JBL. With the thing being dunked in water fully I may not bother buying parts since replacing one may leave 6 others that are bad.
From looking at the specs of the JBL Boombox, it's listed as waterproof, did you check with their support exactly what that means and how it affects warranty?