Uploaded June 2024 | Updated September 2026, 40 minutes ago

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When you install an aftermarket amplifier you need to run a power wire from the vehicle's positive battery terminal to the amplifier. Somewhere along this wire you must include an inline fuse in order to properly protect the wire. A commonly used suggestion is to keep the fuse "within 18 inches of the battery", but is this actually the best suggestion? Why does the fuse need to be close to the battery anyhow? Let's dive in!

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