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Message: <blockquote data-quote="SounDrive" data-source="post: 8516394" data-attributes="member: 653833">600 watts should not be straining your electrical system. I would do the big 3 with 1/0 or 4 gauge OFC power cable (welding cable works well), and also be sure that all of your grounds are sufficient (grounded to bare metal, preferably the frame)One issue you might be having is that the PCM on your truck shuts off the alternator if it doesn't detect a load. Since the amp isn't something included on the truck from the factory, it doesn't detect the load from the amp. We sell a PCM bypass harness from USAlternators that makes your alternator charge at a constant 14.8 volts and tricks the PCM so that no charging system error is present. That should fix any electrical issues you have and they run $200. Let me know if you're interested - PM or email is the best way to get in contact</blockquote>

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