How is the tre turned on/off? Remotely or a dip switch or?(rockadaous @ Feb. 09 2007,06:22) the Gipro is plug and play. you have a built in Tre. You can also turn tree off and just run indicator. (nice option) the indicator has one power wire running to the battery. 20 min install with beer
Also does this interfere with a speedo healer?