Becker likes to use slide locks for the db25 connector on the back of the radio.

The ar3201 has a circular pin slide lock - the ar4201 a different locking "hook" hardware set.

Does anyone have a source for such hardware? I've looked in mouser and other online catalogs, but all I find are the standard
screw-in post connectors.

I'd replace the lock hardware on the radio, but suspect I'd have to completely disassemble it to put in new hardware.