First time posting. I just bought a boat and it came with a 797 c2i, I have 2 xducers mounted on the boat that need to be remounted. The 797 is suppose to have side imaging with an optional xducer, but no SI screen, as I said I have 2, one is longer than the other, the long one is at the mount at the console, the shorter ones cable runs to the front of the boat where another sonar mount is but not in the mount. The longer xducer has a 5 pin connector and the shorter xducer has a 7 pin connector. I'm wondering if the smaller xducer is my SI xducer, can't see any part #'s on them. attaching pics for ID Any help would be greatly appreciated