Interface issues

Apols if any of this has been posted previously - I have just found 
this newsgroup. It's pure dead brill.

Systems:-
Airmar DST 800 inputs to Actisense NDC4. Also coupled in to NDC4 is 
Navman Wind and Garmin 182 GPS. USB from NDC4 to Tosh laptop running 
Chart Navigator Pro.
Output to dsc radio from NDC4 ok

Issue 1
Chart Nav Pro shows DST info (well, everything it can as it is still on 
land - hence no depth as yet). Wind info >doesn't< show up although CNP 
shows data from AIS (separate usb ****t), GPS info and DST info. Logging 
the ****t shows wind info being received however. Any ideas?

Issue 2
Fitted Navman repeater - can I take the output from either the NDC4 to 
show all the info? (present limited attempt shows NMEA - "no" re****t on 
Navman screen.

or

Can I wire the DST such that it feeds the NDC4 >AND< the Navman 
repeater? If so how?

TIA
g