I trimmed and installed the throttle quadrant to the tunnel cover. I trimed and installed the center stack to the Throttle quadrant and tunnel cover. It is removable withour removing the tunnel cover allowing the throttle quadrant to remain in place once the throttle, mixture and prop cables ae hooked up. I also made brackets to attach the upper portion independantly to the IP so I can cut it loose and leave it in place once the instruments are in place. All will be covered with french seamed leather to finish off.