Why Does My Car Amp Keep Blowing Fuses?
Power wire grounding If the amp fuse keeps blowing, the power wire–the wire that goes to the battery or a hot connection–may be grounding out. That fuse exists for just this purpose–to blow before the internals of the amplifier become ruined. It is made to fail so that the more expensive components stay intact. Faulty ground If the ground wire is not fully connected, or the wire is damaged, spikes could cause the fuse to fail. Trace the ground wire (almost always black for audio amplifiers) to where it is attached to the chassis, inspecting for kinks, tears and other damage. If the wire appears in decent shape, inspect the connection point. If the ground itself is loose and allowed to move in the slightest, it could cause the fuse to blow or the amplifier to shut off. Resistance If the power wire is too small in diameter or damaged, it could cause an abundance of resistance, which creates heat, which in turn makes the amp work harder. The extra heat from the resistance could cause t
