its a relatively new to me boat...2008 XLV. I worked thru so many things last year the speakers really weren't a high priority. My wife swears the tower speakers worked last year, but I don't remember.

There are 6 speakers and a sub in the boat. they all work just fine. 2 amps located by the battery, both light up so they appear to be working.

No sound comes out of the 4 tower speakers, though they do have LED lights on them that come on, so I know they have power.

Where do I begin to trouble shoot? I feel like they have to be plugged in since they have power? Is it a setting on the actual stereo?

Thanks for any insight!