So after trying to locate the live well light/harness assy I finally succeeded today. I knew the boat was optioned with it because the circuit breaker & switch are present. I guess at some point during these last 27 years it had come loose from the lens housing attached to live well and had fallen down and under driver's seat box. I fished it out and got it to light the bulb after a good cleaning of the contacts. The housing to which the bulb end attaches to has male threads maybe 1 1/2" in diameter. I believe I am still missing another piece. Would like to know if anyone with a V-21 and this option could shed more light? I know the only way to see this area is with the stbd rod box removed so I understand the reluctancy do so. I neglected to snap a pic of the housing/lens assy but will do so tomorrow.
