How do you get behind the heater knob to fix cable for heater Volvo 940?

To access the heater cable behind the heater knob in a Volvo 940, first, remove the trim panel surrounding the heater controls. You may need to unscrew or gently pry off the panel, depending on the model. Once the panel is off, you can access the heater control assembly, allowing you to inspect and fix the cable. Be sure to disconnect any electrical connectors carefully to avoid damaging them during the process.