What I do not understand is the price increase on transducers. Last time (about 5 years ago) that I bought a skimmer it was $45 now they are $70. I have one the transom. It was an extra that I had laying around and put it on last year. I also have one in the hull for the dash mounted unit. The transom suddenly got weak. It will still barely pick up the bottom. The skimmer that I have in the hull for the bow just quit working. I had this happen before. I now have 3 pucks 1 of which I use for an in dash flasher and the others are dormant. The dormant ones worked fine when I quit using. This is why I was thinking adapter. In the hull I have the 3 pucks and at least 3 skimmers 1 of which works. Needless to say I am running out of room and that is the main reason I was thinking adapter. What I really need to do is buy an HD unit for the dash and run the current transducer to the bow. fyi, boat is almost 30 years old. I have successfully spliced before and I guess I will try that again.