Icom IC-H16T Earpiece Retention Adapter

This is an adapter similar to my T70 adapter and it fits the same plug types but for a more obscure radio. It has a clearance hole for the DC jack that's big enough for the standard solder type 2.1mm DC jack.

The concept is similar but this variant is more of a friction fit, the size of the pocket in the radio is smaller than the T70 so I didn't want to weaken the actual retention piece.

I printed the piece horizontally since the 1mm extension on the bottom would be annoying otherwise; thi