Dug out a little foam in 5/16" hole, then cut two snap bushings where they fit together by removing 1/2 of a side. This leaves a nice rounded entry and exit. I didn't want to make a huge hole for rubber grommet. Wires going to reed switches will be 2 conductor shielded. Reason for shielding is for robustness. Snap bushings were floxed in place. By leaving 1/2 remaining on each side, there was 1 snap that will get nice and stuck once flox cures.
Y10-06-13