Place both shells face up in front of you and lower both faces into the shells. Make sure to keep your wires together through the provided gaps from the AutoCad cut out. Thread your aerial into the speaker side of the radio to reduce interference and get the best reception.
As the mould for your shell and laser cut faces are both the same size a very snug fit should be achieved. With a small amount of force the faces should with inside the shells and hold themselves firmly in place. If need be the faces can be sanded lightly.
You should now have your radio held in each of your shells.