Asked in Auto Parts and RepairsCar Stereos and SpeakersFord E-150 VanFord Explorer XLT
Auto Parts and Repairs
Car Stereos and Speakers
Ford E-150 Van
Ford Explorer XLT
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Asked in Jeep Liberty
How do you bypass the amp in a 2002 Jeep Liberty?
Well, you do not necessarily have to bypass the amp. If you are using aftermarket speakers, you will have to bypass it, because the speaker will be receiving power from the head-unit AND the factory amp (speakers cannot have 2 power sources). This can be done with a bypass harness from www.crutchfield.com or you can just run your own speaker wires from your head-unit to your speakers. But, you will need aftermarket speakers, because the stock speakers are not designed to just be powered by your aftermarket head-unit, they're designed to be powered by the factory amp. However, if you are using the stock speakers, and just wish to use an aftermarket head-unit (what I did on my 06 liberty w/ "premium infinity sound"), all you have to do is power the factory amp (for each speaker). With a factory amp, your factory head unit sends power to the factory amp, when the car is turned on. Your aftermarket head-unit/harness, is not designed to power a factory amp. For this reason, your factory amp has no power, so you get no sound from your factory speakers. The Fix: Create a power source for your factory amp. People commonly use the "power antenna" wire (used to make an antenna go up/down when the car is started/stopped). This is simply a wire that has voltage when the car is on, and is dead when the car is off. The power antenna wire is located in the back of most aftermarket head-units. Just wire the power antenna wire (the one from the back of your aftermarket head-unit) to the factory amp power wire (this wire was originally attached to the back of the factory head-unit), and it should get power. You should now hear sound from your speakers. Each vehicle has different colored wires, so make sure you look at a 2002 Jeep Liberty wiring diagram for the color of your jeep's factory amp power wire. This can be found online. I know that was a bit lengthy to read, but I wanted to be sure that you would understand! Hope that helps! -alex