Icom IC-M80 Owner's Manual page 8

Primary Power
If at all possible, do not exceed the 10 feet length of the power
cable supplied, if it is necessary to make a run of over 10 feet
use the wire guage specified in the following table. Color cod-
ing of the power cable is as follows: Red is for positive (+)
side of the battery, black for minus (—). The blue апд white
wires are for the microphone hanger; the short red wires are
for connection of an external speaker. When hooking up the
red and black wires make the splice as close as possible to the
power side of the fuse holder, solder all connections and insure
that all connections are clean, tight and moisture free.
Be sure to leave a service margin in the power cable so that
should the set have to be removed from the bracket it can
slide out without straining the cable.
POWER INPUT CABLE
WIRE GAUGE | MAX DISTANCE
14
12
10
8
6
External Speaker
Antenna
Preliminary Set up