Does this count..?  

Had the boom on my friends boat to teach my daughter to ski and couldn’t resist trying again. It’s been 20+ years but the 2 seconds I was on my feet it sure was fun!

https://www.instagram.com/reel/C8PePz4O2B2/?igsh=ZWM3YnRxcWk5eWFv

Makes sense.   As soon as I can make it do something…

Where is the amp/preouts from the deck?  I thought it would be underneath but I just see one small wire bundle coming out of the touchpad that disappears into a bundle of snakes.

Also, I got the new sub and amp all wired and installed yesterday finally, and nothing comes out of the sub.  Sub checks good.  Amp lights up normally.  Power, ground, turn-on lead…. Double checked RCAs, gain, crossover, sub on/off on the control unit…. Nothing.

Only thing I can think of is the RCA cable or output is bad, or the brand new amp is bad, or I’m missing a setting somewhere?

My 2018 LSV23 was 7250 lb with full fuel, coolers and toys for the day. Cat scale verified. Add 2,000 lb to that 5.700 lb and your probably close.

I can only add a little to this.  My 2003 came with 15w40 and contacted Indmar and they said 15w50 Mobil 1 was fine and wouldn't void my warranty.

Replaced my burned up RF 12” sub (smelled like dumpster fire) with a new one, and replaced my internally shorted RF Punch P600-2 (orange light on anytime connected, and made a second sub smell like electric death) with an M5-1500X5, but still no sub activity.  

Turning it on or off at the deck gives no change in sound.  Bass up or down no change.  

Checked sub with a battery and the Sub reacts to battery test (touch wires to +/- AA terminal).  The amp appears to power on.  No warning lights.  Sub channel lights up blue.  Switched the presets off.  Adjusted the gain.  Adjusted the crossover.  Nothing.

i looked at the back of the head unit/“deck” and see one small wire running to ???  I don’t know where the RCA outs originate from (physically).  The rest of the system (other amp, tower speakers, boat speakers) all work fine.

Help?  I’m $1500 into fixing the sound system on a 4 week old (to me) boat and haven’t gained anything…. Any ideas or related experience ??