Specifically this one, in good working order :



It's square & 4.35"W x 4.35"H x 0.8"D ... and is the only unit I know of that will fit in the "in dash" hole in my boat's dashboard.

I may only need the head unit, but if you have the head/pwr cord/transdx .. I will consider a reasonable $$ offer for the complete set.

... cp