Damn. You have to be pulling a lot of current to blow that big fuse out. Are you sure it wasn't a short? And since that was the fuse you blew, uh..... you better run a bigger gauge wire straight from the battery to the interior just for all your accessories. Also don't forget to fuse each accessory too. If you have tons of accessories, getting a circuit breaker will save you money in the long run if you keep blowing fuses as a circuit breaker can be reset. Good luck with all your little projects.
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