Sub woofer buzz and sound cutting out on 2018 CRAZ

[Snowslydder]

The sub woofer started buzzing on our 2018 Moomba Craz. Comes in and out and sometime all of the speakers beside the towers cut out. I have to turn of the head unit and turn it back on to get them to work. We do not blast the music since we have are 7 year old on the boat everytime so I cannot imagine its blown. If anyone has any inputs I would greatly appreciate. Really ruining out outings.

[MLA]

Id first make sure all the RCA are fully seated at the amp and then behind the head unit. Next, id swap the RCA between behind the head unit between the tower amp and in-boat/woofer amp to see if the buzzing moves or stays.