24 minutes ago, MLA said:

Im not clear on whats getting into what, but if you plug something into a completely different amplifier and the speakers then play, then those speakers are not connected to the amp you suspect is bad. 

Is this "set" of speakers 2 lefts or 2 rights or 2 fronts or 2 rear? Is this issue on all media modes? Tuner, USB, AUX, BT?

It sounds like you have found a way to make the speakers play by moving or plugging something. This points to the issue is not the speakers and being upstream of the amp. Again, this is based on the info provided. 

Please excuse my bad explanation as I’m not super tech savvy in the stereo department. Currently running two amplifiers. The amp in question has two sets of rca cables and I am only receiving sound from one set. If I swap the rca cables to my second amp I receive sound from both which leads me to believe it’s an amp issue? I could be completely wrong here. I can upload pictures if that would help understand my situation.

Im not receiving any sound from bow of the boat unless I swap rca cables to other amp on any media mode. R or L.

https://ibb.co/W3gpwXg
https://ibb.co/S3vwJR3

16 minutes ago, Samson28 said:

.if I plug into my other amp I get output from the speakers that aren’t working..any ideas?

Im not clear on whats getting into what, but if you plug something into a completely different amplifier and the speakers then play, then those speakers are not connected to the amp you suspect is bad. 

Is this "set" of speakers 2 lefts or 2 rights or 2 fronts or 2 rear? Is this issue on all media modes? Tuner, USB, AUX, BT?

It sounds like you have found a way to make the speakers play by moving or plugging something. This points to the issue is not the speakers and being upstream of the amp. Again, this is based on the info provided. 

Looking to replace an amp I have in a 2016 23lsv. Currently have a MMats MPA470 looking for opinions on a replacement.

Issue I’m having: I am only getting one set of speakers to have output from this amp. I’m guessing it’s an amp issue (complete guess)..if I plug into my other amp I get output from the speakers that aren’t working..any ideas?

6 hours ago, justgary said:

... And no photos....

Sorry. I didn’t take a photo when I had it removed. 

20 hours ago, John I. said:

a couple of the manuals available here -

https://www.themalibucrew.com/index.php?/malibu_specs.html/2002-sunscape-21-lsv-r108/

 

Thanks!  That did the trick.  Got all 3 relevant manuals.