Hi everyone. I am new to this forum and purchased my seadoo last spring. I have been doing a lot of reading about adding a stereo and there are lots of good tips and tricks. I couldn't find anything in the way of adding a dual battery and how to, so I spoke to my cousin who is in sheet metal and together we took the single stainless battery tray and fabricated a stainless dual battery tray that mounts to the existing bolts. Finally got it in today and it fits like a charm.