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One of my quarantine projects, lol. We spend a lot of time at the drive-on beach over the summer, and got tired of relying on the little battery powered speaker that would more than not be dead whenever I went to use it. An earlier quarantine project was upgrading the amplifier and speakers on the boat, so I ended up having leftover marine speakers and a micro marine-rated amp, so decided to put it to use in the truck.
Pulled 8ga wire from the battery into the cargo area, and ran ground down to a muffler hanger bolt on the frame. Switch on panel on the left activates a relay which sends +12V to the amp, and powers up the cigarette lighter, USB ports, bluetooth receiver, and a voltmeter so I can keep an eye on the battery level. Didn't really make any plans, just made it up in my head as I went along, and it surprisingly sounds great. Will get quite loud if I want it to and still clear without distortion. Will be fun for the beach, tailgating (whenever sports are back). Quick connects on the supply cables let me remove it in a few minutes should I need the whole space, but its mounted up high enough for my totes to slide underneath.
Before I even scrolled to the second picture I thought to myself "those speakers had to come out of a Yamaha boat." They look exactly like the Polk speakers in my 212 Limited S. Sure enough next picture showed your boat. Nice job on the build.