Need some help I am upgrading from lms520 on the front and a lms 522c in the dash to a HDS-7 with structure scan in the dash, here is where I am confused I want to put a HDS-5 in the front. So the HDS-5 in the front do I order it with a transducer or without? If without, what cable do I need to order to network them together? Will I see the same thing on both graphs if I do it this way? Is this the best thing to do or do I need to put a ducer on my trolling motor? Any help would be appreciated.Oh by the way I won the UNCLE JESSES saturday at Pat Mayse in my CAT, had a 9.03 paid $5000.00