I am trying to access the bulbs in the heater control panel in my '93 Camry. I have the dash bezel pulled away and the radio and it's bezel removed as well as the heater control panel loose from the dash but it won't pull out far enough to get to the bulbs due the control cables. I have all the knobs removed and the single screw behind the knob. Does this panel separate or do I remove the cables and get to the bulbs from the back of this control panel?