Typically two wires on Hondas. One big cable from the starter to the big lug on the solenoid housing, and one spade connector to the small blade connector on the solenoid housing. There is one other cable, however, but it should have been connected before you got it. It is a large cable from another big lug on the solenoid to the motor.
The ignition switch sends a ‘low’ amp signal to the solenoid through the small wire attached to the blade connector when you turn the key to ‘Start’. The low amp signal makes the solenoid close, which is the click you hear. This does two things. It puts the pinion gear from the starter into the flywheel and it closes the circuit to send ‘high’ amp power from the battery to the starter motor. This circuit doesn’t close if the pinion gear doesn’t fully seat into the flywheel.
If you hear rapid clicking when you turn the key, it means the battery is too low on power to turn the engine. If you hear one click, and the lights do not dim, either the solenoid is bad or the motor is bad. It also could mean there is a problem with the cable sending high amp power to the starter, like corrosion on the cable ends. If this cable uses a secondary lug connection and uses two cables to get power from the battery to the starter, this lug connection may be corroded as well.