The Vintage Aqua Guide 706 Digital Radio Directional Finder is a marine navigation tool manufactured by Aqua Guide. This product is designed to assist with finding direction at sea, making it a valuable tool for navigators and boating enthusiasts. This Directional Finder is not working. However, I have not tried hooking up the 12 volt DC cord. The power cord is open wire on one end. I assume it just needs the 12 volt plug. See photos. I have never used it. It was in a container of nautical equipment and nautical art pieces that I purchased. I did turn it on with C cell batteries installed and it did not seem to come on. I suspect (but do not know ) that there may be a fuse inside that may need replacing. I do not feel qualified to diagnose power issues so I am listing it as Not Working and being sold for parts. Batteries in the photos are not included.