can you give any more details on the fan you installed? is it running at all times or on a switch? is it loud?
If you go back a few post there is a pic of the fan and the box it came in. I got it at west marine for $30. It's a 4" fan and if you look on my switch panel on the dash I have it wired to a safety switch. Runs as needed. I put the safety switch on it cause my son likes to press buttons (2y/o lol) and you def don't want to run it when you're in deep water. When the engine is running you really can't hear the fan and when I'm parked you can def hear it on but it's not a big deal. Plus it reminds you it's on so you don't forget to turn it off.can you give any more details on the fan you installed? is it running at all times or on a switch? is it loud?