400w in cabin outlets

Have nearly 50k on my truck and this has been an issue for as long as I can remember. Never took it in as it's always such a hassle, but now may be the time, unless I can figure out something obvious here for a solution.

Interior outlets, intermittent power issues. Sometimes they work, others they don't. I'd say a 50/50 split. Checked what I believe to be the correct fuse and seems to be seated fine.

Suggestions?