Capt Paul, thanks for your reply on my previous question. Since I will not be mounting the unit for a couple of months, I would like to play with the unit to learn the features and set some things up in advance. I assume if I can locate a 12v converter that will provide about an 1 amp of 12v power I can connect the hot (red) and ground (black) wires to the unit's power cable. I just want to make sure that will not damage anything. It sounded like that is how you do it in your classes. Also, can I hook up the transducer as well? Not sure if operating the transducer when it is not installed or in the water can cause any damage. Thanks for your help and advice.