To disconnect the speaker cable, try pushing on alternating sides of the connector, like small sliding connectors.

If that doesn't work, use a pair of tweezers to firmly grip the sides of the connector and pull straight away from the socket. Hold the tweezers closer to the connector to get a better grip.

If you're having trouble, try rocking the connector side-to-side to loosen it.

To reconnect the cable, insert the connector into its socket and push on the edges until it's fully seated.