Can I run humminbird and Lowrance units in my boat (linked together)? I love my humminbird units (sonar and side imaging) but unfortunately I live in south Louisiana an the gps (lakemaster graphics) sucks! Right now they have some software companies out there (Legends) who are developing some very fine software that has the Louisiana map areas very well detailed. Problem is that I cant run it (software) on my H-bird units. If I can link the units to together, could someone tell me what is the largest Lowrance unit that I can put in my console? Right now I have 777c. (Pantera 2)