Once you have the solenoid out you see four wires; red, white and two black. The remote controller has black, red, green, yellow and white wires. The black wire from the remote controller connects to the black ground wire, in the middle, on the solenoid. This is the connection that runs to the underside of the winch motor and connects with the black grounding cable that runs to the battery.
The red wire piggybacks onto the red connection on solenoid. This is your hot wire.
The green wire is the the radio wire, it is left loose in the housing.
The yellow wire connects to the black connection farthest on the right.
The white wire connect to the white connection. The white and yellow are the in and out controls.
I sealed the connections with heat shrink tubing.