ok, this might be a dumb question, and i think i know the answer but just wanna check.........im looking at a hds5-gen2-with structure scan and a hds7-1st gen w/out the structure scan.....i have a power drive/I-pilot with universal sonar.....if i bought both the hds units listed my idea would be to place the hds5 on the front of the boat and connect it to the us2 transducer on the i-pilot, then place the hds7 on the back of the boat and run it on the structure scan that came with the hds 5.....link them together also...is this posible? thanks for any info, God bless all.