Partycove2 wrote:
I am just guessing but I'll bet your amp is only controlling the sub and 4 arch speakers, the 4 cabin are wired directly off the head unit.
That's how they wire it in the 348 too. The 'front' speakers are down in the cabin, wired directly from the head unit. The arch and cockpit speakers are fed from an amp that's connected to the 'rear' pre-amp outputs from the head unit. This way you can use the front/rear fader to control to choose how much audio is going above/below. Like at night to keep from blaring music out the arch, or during nap time to let the kids sleep quietly down below.
One simple hack you can make is to run the audio out from the DVD player to the AUX input on the head unit. This lets us hear movies using the cabin speakers instead of just out the TV. One additional discovery was finding that the DVD player itself has an INPUT. This allows passing another signal into the circuit when the DVD player is turned off. I connected an iPod to this. So now I can play movies or the iPod using the boat's speakers. Worth looking into if you don't already have either the DVD or iPod connected to the speaker system.