When I had my 2001 Classic and my Zercom flasher went out I replaced it with a stereo head unit that fit into the opening perfectly. Several head units were available that would work. Add a couple of nice speakers and you’ve got a clean install that leaves no ugly holes in your dash.
By the way, I loved that flasher as it was the only depth finder I’ve ever had that was reliable at telling me true depth regardless of bottom composition or how shallow it was at decent speeds. After my second unit went out I put the stereo in place and enjoyed listening to tunes out on the water.
Chris Coupel
Paulina, La.