Welcome to the forum.
The "wood" panels have screws retaining the perimeter.
https://images.boattrader.com/resize/1/18/3/291803_20200520065201296_6_LARGE.jpg
On my boat I made it so that the factory "hinge", permitting the unscrewed panel to be flopped to the starboard, having a single wire bundle following the factory wiring bundle is retained.
On my boat, I put a towel onto the throttles and the window sill and just flop the dash panels to the side.
That removal exposes the dash rear, the volume behind the MFD to the left, plus the rear of the dash on both sides of the steering wheel.
The hinged door below the wheel also permits access.
Is the problem that the aftermarket wiring prohibits nice repositioning of those panels?