How do you change speedo cable on 1998 astra van?

To change the speedo cable on a 1998 Astra van, first, disconnect the negative battery terminal for safety. Remove the instrument cluster by unscrewing it and gently pulling it out to access the speedometer connection. Next, locate the speedo cable at the transmission, disconnect it, and then remove it from the dashboard. Install the new cable by reversing the process, ensuring all connections are secure before reassembling the cluster and reconnecting the battery.