Try the Lexan over the Plexiglass and don't go with the metallic stuff.
We had an issue with a bass boat and a tach seeking a ground, that caused a rewire job. To make the story short, when the motor was connected and not the boat power (lights, electronics, etc) it would back feed thru the steering cable and melt the wires.
__________________
'75 Cuddy with '00 Johnson Ocean Pro 150 horse
Benny
|