I'm in the same boat, very disappointed with my side image. I have mine mounted on my trolling motor and get a so so image when I shut the trolling motor off. I placed a piece of 1/4" rubber in between the tmotor head and the transducer and still get interference, my problem seams to come from the transducer cable being to close to wires for the tmoter. I don't know but plan on keeping up with this thread to maby try something someone else suggest.
You know me, I'm always ready for a road trip. Chip Newest member of Traveling Team Overalls