[Icom] Marine 402 MMSI unlock

[Marc Linsner]

I'm curious if anyone knows the MMSI 'unlock' codes for the ICOM 402.  I
purchased a used boat with this radio, obtained a new MMSI number from =
the
FCC and can't program as the radio has me locked out.  I got this =
response
from ICOM tech support,

"You will need to take the radio to an ICOM marine dealer that is =
capable of
programming the number via a computer program,"

This implies (at least to me) that there is a command sent to the radio =
via
the NMEA port that either changes the MMSI number or unlocks it so it =
can be
change via the keypad.

Suggestions?

Thanks!

-Marc-