New owner. New boat 30s. We brought our Amazon Fire stick with power adapter but we can’t figure out how to connect the Jenson TV over the dinette. There is 1 HDMI port but it has an adapter plugged in that has a splitter that has 2 incoming HDMI cables. We assume this is somehow connected to the electronics at the helm? But there is nowhere to plug the fire stick in. Any suggestions? We can go buy another adapter or something but are afraid to disconnect anything (can’t imagine that we need to see the helm stuff on the tv? ). Thanks in advance