Trying to figure out what transducer was originally installed in my 07 p2. Its a lowrance pod style shoot thru hull transducer. Swapped to hds units when I got the boat and used the old transducer, had to recently do a reset on the units and cant remember what transducer I had selected in my settings. Now it wont hold the bottom as good a it used to. I tried looking for the silver tag on the wires but it must have fell off. Any help greatly appreciated.