OK, I have removed an older Lowrance and installe the 1197 in my 05 Puma. I used the bracket that came with the unit and shortened it (cut and rewelded) and bolted the bracket to the dash. The hole where the Lowrance was I jut put a stainless plate over that. It also had a Lowrance on teh front.Here is the big deal, I absolutely could not get the NEMA Lowrance size plugs pulled out. I do not know if BC lays the wires in before the cap goes on or what but I ended up having to cut teh connectors off and pull the wires. Not a big loss, sold the old stuff and teh new owner ordered new wires. Better make sure you can pull the connectors before you buy. It was no problem pulling the HB harness as their connectors are smaller and round. I have a 1197 at the console, a 987 at the nose with a separate 7XX connected to a wide side transducer (works best in lLouisiana as most times I am in 1-3 feet of water and I can get a shot of whats at water level from 15 feet away) the SI unites are interlinked adn I have a weather sense. If I was to order a new boat today, I would probably go lowarnce, but the HB stuff is plenty good.Milton