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Message: <blockquote data-quote="helotaxi" data-source="post: 1467491" data-attributes="member: 550915">Well there really is no way to know.  We don't know how you listen to your music.  That will determine how much current the amp draws and whether your electrical system will be adequate or not.  Any way you go, you need to upgrade the wire to the alt, especially seeing as it runs the entire length of the car.  With that long a run, voltage loss to resistance can be significant and the power is lost as heat.  Draw enough current down too small a cable and you will have a fire hazard on your hands.  The interior has to be somewhat taken apart to run signal from the headunit to the amp, and speaker wire from amps to front speakers.  While it is already apart, run a new alt-to-battery cable.If the alt is not adequate, adding a cap will only make things worse.  Don't do it.</blockquote>

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