Subscribe to our newsletter

Automate Your Trim Tabs - Photo 1

Automate Your Trim Tabs - Photo 1On this Contender 35 we also installed a new Bennett trim-tab rocker switch with position-indicating lights (the old one was a simple rocker), so we used a slightly different relay, which incorporates red and green wires input from each trim tab (A) and also a blue cable (B) running from the new switch (see “Switch It Up with Tab Indicators,”). With either of Bennett’s relays, simply unplug the boat’s existing wiring harness from the HPU, plug it into the appropriate pigtail on the relay module (C), and plug the relay’s other pigtail into the HPU (D). Orange and black wires (E) on the relay module connect to a 20-amp DC power source.