I have a 2008 LSV that didnt come with a depth gauge... I installed the thru hull transducer last weekend but need some guidance on the best way to wire the power. I would like to find the factory hookup and use that if I even have it (what color wires am I looking for) or wire it into the ignition? Not sure how to do that. I just want it to work when the boat is on and not have to remember to turn it off... Thanks for any help!