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Please Help! Installing head unit with infinity system?
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<blockquote data-quote="KaeZoo" data-source="post: 2424278" data-attributes="member: 554753"><p>If you're replacing the speakers and head unit, then bypassing the amp is easy.</p><p></p><p>The factory has the following wires:</p><p></p><p>--12v constant power and ground</p><p></p><p>--a remote turn-on wire that runs from the factory head unit</p><p></p><p>--signal wires that run from the factory head unit to the amp. There will be (+) and (-) wires for each channel, front left and right and rear left and right. These will be connected to the speaker outputs at your head unit.</p><p></p><p>--speaker outputs that run from the factory amp to the speakers. There will be outputs for left and right front door speakers, left and right tweeters, and left and right rear door speakers.</p><p></p><p>What you'll need to do is connect each input wire (from the head unit) to its corresponding output wire (to the speakers).</p><p></p><p>Here's the step-by-step:</p><p></p><p>1. Replace the head unit, using a Chrysler wire harness adapter. When you plug the head unit harness into the stock plug, write down the factory wire color for each speaker. You should have eight wires noted when you're done: front left +, front left -, and so on.</p><p></p><p>2. Replace the front and rear door speakers. When you replace the speakers, note the colors of the speaker wires, the same way you did behind the head unit: front left +, front left -, and so on. If you have time to do this all at once, it may be helpful to leave your door panels off for now, after you put the new speakers in.</p><p></p><p>3. Take apart the kick panel or glove box assembly until you can get to the factory amp. Unplug both harnesses from the amplifier. Look at the wires and identify the colors you found behind the head unit. Hopefully you'll also see the colors you wrote down at each speaker too.</p><p></p><p>4. Just connect the front left (+) head unit wire directly to the front left (+) speaker wire, and so on. Cut each wire an inch or two back from the plug, strip them, and connect them together with solder or crimp caps. Don't use wire nuts. Leave enough wire at the plugs so you can re-connect it later if you want to return the vehicle to stock condition.</p><p></p><p>5. It's possible you won't find the same wire colors at the amplifier that you found at the speakers. Sometimes the wire colors change at the door plugs. If you can't find your speaker wire colors, use a AA battery to identify each speaker. Just get two wires you think go to a speaker, strip each and touch them to opposite poles of the battery. If the speaker moves, you have the right wires. If it moves toward you, you have the positive speaker wire connected to the positive battery terminal. IF YOU HAVE TO DO THIS TESTING, UNPLUG YOUR HEAD UNIT FIRST. Connecting the battery to your head unit's speaker outputs will damage the head unit.</p></blockquote><p></p>
[QUOTE="KaeZoo, post: 2424278, member: 554753"] If you're replacing the speakers and head unit, then bypassing the amp is easy. The factory has the following wires: --12v constant power and ground --a remote turn-on wire that runs from the factory head unit --signal wires that run from the factory head unit to the amp. There will be (+) and (-) wires for each channel, front left and right and rear left and right. These will be connected to the speaker outputs at your head unit. --speaker outputs that run from the factory amp to the speakers. There will be outputs for left and right front door speakers, left and right tweeters, and left and right rear door speakers. What you'll need to do is connect each input wire (from the head unit) to its corresponding output wire (to the speakers). Here's the step-by-step: 1. Replace the head unit, using a Chrysler wire harness adapter. When you plug the head unit harness into the stock plug, write down the factory wire color for each speaker. You should have eight wires noted when you're done: front left +, front left -, and so on. 2. Replace the front and rear door speakers. When you replace the speakers, note the colors of the speaker wires, the same way you did behind the head unit: front left +, front left -, and so on. If you have time to do this all at once, it may be helpful to leave your door panels off for now, after you put the new speakers in. 3. Take apart the kick panel or glove box assembly until you can get to the factory amp. Unplug both harnesses from the amplifier. Look at the wires and identify the colors you found behind the head unit. Hopefully you'll also see the colors you wrote down at each speaker too. 4. Just connect the front left (+) head unit wire directly to the front left (+) speaker wire, and so on. Cut each wire an inch or two back from the plug, strip them, and connect them together with solder or crimp caps. Don't use wire nuts. Leave enough wire at the plugs so you can re-connect it later if you want to return the vehicle to stock condition. 5. It's possible you won't find the same wire colors at the amplifier that you found at the speakers. Sometimes the wire colors change at the door plugs. If you can't find your speaker wire colors, use a AA battery to identify each speaker. Just get two wires you think go to a speaker, strip each and touch them to opposite poles of the battery. If the speaker moves, you have the right wires. If it moves toward you, you have the positive speaker wire connected to the positive battery terminal. IF YOU HAVE TO DO THIS TESTING, UNPLUG YOUR HEAD UNIT FIRST. Connecting the battery to your head unit's speaker outputs will damage the head unit. [/QUOTE]
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