I took a Lowrance depth "flasher" out of my old Skeeter and intend to put it in my aluminium Bass Tracker. My Skeeter was a glass boat & transducer was mounted in the bilge area shooting thru the hull. Can I mount the transducer in the bilge of my Bass Tracker or do I have to mount it outside the hull, like on the transom? I would prefer inside the boat, but don't know if it will shoot thru aluminium.