Finally got to give the boat a go for the first time this season,and listened to the boat for the first time,on the water. I've played a few hrs listening in the yard while prepping and cleaning/waxing etc the boat ,but never noticed my issue till yesterday.

I never wired the new amp and sub,with second battery as wiring is not really my thing. My question/ issue is stereo works fine while boat is off or running but as soon as boat is put into gear Stereo cuts out. I'm thinking something is wired slightly incorrect,but as i never did the wiring was wondering where to start looking??

I'm thinking this is likely an easy fix,Anyone??????