A vehicle's stereo system sometimes has a separate amplifier, and when installing a new receiver, you generally need to connect the new stereo's speaker wires to the factory amp's output section. These amp bypass harnesses allow you to use the power from the new car stereo to drive your speakers and not rely on factory power.
If you’re looking for a more visual take, check out this video of one of our senior advisors installing a stereo. He walks you through the process from start to finish and shares a few expert tips along the way.
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