So I get home Friday and put the boat in the water and right away I hear a high pitched sound coming from my connext. First thing I think of is the other thread where someone else had this problem and had to replace the connext screen. So we drive around for a few hours and it gets less and less noticeable then goes away all together. All is good Saturday also and we used the boat alot those two days. Get in the boat Sunday to take the boat out of its slip and load on the trailer, turn the key and get a ERR code on the screen. CAN4 LOSS OF GAUGES/LOSS OF GPS/LOSS OF STEREO. I turn the boat off and try to restart it and the same thing. Fuel reads over full and STEREO will not turn on at all but everything else still works. I get it on the trailer and try turning the batteries off and back on and nothing. Check all the fuses and all is good. I live 4 hours from the dealer so I can't just run it in quick and also boating season is almost over here so I don't want to lose any time. The dealer is already ordering other warranty parts and when they get in I will take the boat in but that might not be for a couple more weeks. Does anyone have any idea what this could be or where I could start looking? I won't be back to the boat till Friday but I would like to have an idea where to start or have time to order something if I need something to fix it. Do I need go order the YDS cable and if so where do I order it from?