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Bumping this old thread: I have a 2012 Marlin 300, and it needs a new wiper motor on the starboard side. Reading some posts, it seems that the replacement is an Ongaro 30991 with a 2.5" shaft. Can anyone verify that this is correct? My boat is in Antigua (and I am in Florida), so I can't just...

No, it is powered through the connector.

The handset (GHS10) is separate - it was actually unplugged when the charger failed, so hopefully no damage. We are going back to Florida for the summer next month, so hopefully I can get a used replacement, and hope. If not, I can install a totally new non-Garmin set.

I have a voltmeter. I have measured 12V on the "Power NMEA I/O" connector, so I know the fuse I replaced is for the VHF power. As soon as I reconnect the power lead, the fuse gets zapped. I have no doubt that the radio has a dead short in it. The question is to replace it with the same unit -...

I am bumping my old thread. I have been using a hand-held since we have stayed close to shore during COVID closures, but we are planning to go off-island next year, so I need to get this fixed. The VHF300 transceiver was inside the console cover, behind the plotters. I had to remove a lot of...

My wiring diagram shows a 1A inline fuse. I asked Grady-White, and they basically said it was too difficult to find, and recommended that I install a battery operated CO detector . they said they are using this for new boats.

I have a 2012 Marlin 300. The CO detector reached its end of like. It is the hardwired type. I was replacing it, but I think during the replacement I caused a short. There is no power to the detector now. The old detector had power, but had reached EOL. The manual indicates a 1A fuse for the CO...

It is a Garmin VHF300. All that is visible is the handset, which is located on the lower part of the instrument panel. There has to be a radio unit somewhere.

I recently picked up our 2012 Marlin 300 after summer layup (we have the boat in Antigua) and I noticed the VHF is not powering on. I had disconnected the handset when it was hauled, and now nothing. All other electronics are fine. There are no signs of corrosion on the connectors. Where is the...

We bought a 2012 Marlin 300 and recently shipped it to our winter home in Antigua. The owners included a replacement Kenwood stereo to replace the non-functioning unit. Today I attempted to install the new one, but the job seems to be impossible. The head unit is located aft of the galley sink...