2001 270 Sundancer Trim Tab fuse location

[GauchoMark]

Neither trim tab is working and I can't hear anything from the HPU. The breaker isn't out, so I'm guessing a fuse? My understanding is there is only one 20A fuse for the system. Am I on the right track? Also, does anyone know the fuse location?

 

[Csik]

When mine weren’t working it was a ground on the starboard side that came loose.