I switched to a Simrad go7 4 years ago and I just installed the third unit. First one lasted about 3 months and second went out a few months ago. Since switching to Simrad one thing I’ve notice is when starting the motor with Simrad on, the screen flickers. It’s doesn’t shut off, just flickers. Never notice previous plotters do that. Other Simrad owners have the flicker when starting? If not how do I stop it? I’ve check connects. You think this could be causing the failures I’ve experienced? Thanks!!