Loosely install the replacement DC power socket in the base plate hole. While holding the back of the socket to prevent rotation, screw on the nut to hold in place and confirm the power cord fits properly.

Note the location of the red and black wires on the factory installed DC power socket and then cut the wires close to the terminal points.

Strip the wire ends to an appropriate length to solder to the replacement socket. Ensure you know the location of the red and black wires on the new socket before soldering.