Me again What's the convention for which wire goes to tip ring or sleeve? Using M27500 wire (white, orange/white, blue/white). Garmin shows a legend for the TRS jack. It shows a legend for a 3 conductor, shielded cable. But it doesn't go as far as putting two and two together. Dealer's choice? Or is there a convention for this? Trying to keep this as standard as possible. Thanks!