Simrad WR20 RemoteCommander Manual page 15

The other end of the cable has a prewired connector block that
locates in the next available free station in the VHF black box.
Please refer to your VHF user manual for further instructions (Fig.
2.2).
Fig. 2.2 - Terminal wiring
The radio can also be fitted with a Simrad LS80 external speaker
or third party speakers with an impedance of 4 Ohms. If an
external speaker is to be fitted this must be wired directly into the
connector block. Remove the wires from the connector block
terminals 7 and 8 and insulate the bare ends. These wires are are
redundant and not used. Wire the external speaker into the two free
terminals.
Note
The Basestations VHF cable must not occupy the connector in the
VHF black box that is designated Station 1. Station 1 must be
connected to a hardwired VHF Handset or Control Panel.
Terminal Wire
Number Colour(s)
1 Brown
2 Green
3 Red
4 White
5 Blue
6 Yellow
7 Orange
8 Black
Installation
15