How to Install a Fuse Box in a Boat | Gone Outdoors | Your Tips. Use a high quality fuse box with positive and negative busbars. Unlike in a car, where circuits can be grounded at virtually any point, circuits on a boat should start and end at the fuse box to prevent stray electrical currents.Boating · Camping · Firearms Amazon: fuse box for boat wwwon›Search›fuse box for boatWUPP ST Blade Fuse Block with LED Warning Indicator Damp-Proof Cover - 12 circuits with negative bus Fuse Box for Car Boat Marine RV Truck DC 12-24V. by WUPP. 4.6 out of 5 stars 80. $24 $ 24. 98. 5% coupon applied Save 5% with coupon. Get it as soon as Mon, Mar 18.