INSTALL SOURCE UNIT

Clarion’s CMS4 black-box source unit has a footprint of 7.5 by 9.75 inches. We used the four supplied self-tapping screws and washers to secure the module to a bulkhead on the inside of the helm console to keep it dry. Check behind the mounting surface before drilling. Using the pigtail wires on the female portion of the Molexstyle plug, connect the fused yellow wire to a 12-volt DC positive power source. Connect the black wire to ground. Also, now is the time to install a marine AM/ FM antenna (not included) and plug it into the source unit.