John,
have you tried contacting Simrad in the UK, as they took over Navico. Have a
look at http://www.simrad.co.uk/

regards,
Philip.

"John Kotsonis" wrote in message
...
I have the Navico WP 4000 autopilot but I`ve lost the remote control.
Can anybody advise me how to make one, since it is not available in the
market any more or where I could find a second hand one?