My son just gave me a Humminbird TCR ID-1. Which of the three connections on the back is used to hook up the transducer. I couldn't find any wiring diagrams to hook this up. Any help would be greatly appreciated.
Sorry, I have not owned or used the ID-1. I did have a TCR101, but it had all connectors at the bottom and keyed such that you couldn't mix them up. Write HB tech service. They will get back to you within a couple of days.
don't know that model but the power cord to yout battery should only fit one of the sockets in the rear of the head the transducer will also only fit in one of the sockets.look close to the sockets in the rear. the holes for the plug wires are different sizes holes are spaced differently they will only fit one wire plug. third might be for a temp connection.
