On the Box is a diagram with numbers which tells you which shows the location of each protector. Then on the bottom of each thruster are the numbers for each thruster protector.
The HDMI box can be powered by the Remote Controller AC charger and the short cord included with the HDMI box or it can be powered by a phone charger that meets the 5V 3Amps requirements of the HDMI box.
Cut off the wire to the motor ESC close to the old ESC Strip the cable back and strip the individual cables to fit into the new ESC. Strip only 2-3 MM. Solder the wires to the corresponding spots below. Bench test motors. Fill with Marine Flexible ...