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<blockquote data-quote="helotaxi" data-source="post: 1736893" data-attributes="member: 550915">If you are getting enough ripple to cause EMI through the shielding of a basic RCA cable, your car&#039;s computer won&#039;t work right either.&nbsp; You also won&#039;t get enough of a filter effect from the caps in the amp power supply to keep noise out of the system.&nbsp; Same for the head unit.&nbsp; Routing of the RCAs will be the very least of your concerns if your electrical system is in that bad of shape.To say that I&#039;m wrong because you might have a problem if a major component is defective is a pretty messed up way of looking at things.&nbsp; That&#039;s like saying the amp only really NEEDs a 100A fuse but you should use a 150A in case you have a bad ground, or the engine is making a terrible grinding noise so just turn up the radio so you can&#039;t hear it.&nbsp; The fact is that in a car with nothing seriously wrong with it, you can go as far as zip tying the RCAs to the power wire without any ill effects.&nbsp; If there is something wrong with the car to the point that the power wires are raditating noise, that problem needs to be addressed, and not for the sake of a noise free stereo, but rather for the continued safe operation of the vehicle.&nbsp; If you want to continue to propagate car audio myths that have no basis in science, then go right ahead but you had better have a better argument than &quot;that&#039;s wrong because what if something else is broken.&quot;</blockquote>

[QUOTE="helotaxi, post: 1736893, member: 550915"] If you are getting enough ripple to cause EMI through the shielding of a basic RCA cable, your car's computer won't work right either. You also won't get enough of a filter effect from the caps in the amp power supply to keep noise out of the system. Same for the head unit. Routing of the RCAs will be the very least of your concerns if your electrical system is in that bad of shape. To say that I'm wrong because you might have a problem if a major component is defective is a pretty messed up way of looking at things. That's like saying the amp only really NEEDs a 100A fuse but you should use a 150A in case you have a bad ground, or the engine is making a terrible grinding noise so just turn up the radio so you can't hear it. The fact is that in a car with nothing seriously wrong with it, you can go as far as zip tying the RCAs to the power wire without any ill effects. If there is something wrong with the car to the point that the power wires are raditating noise, that problem needs to be addressed, and not for the sake of a noise free stereo, but rather for the continued safe operation of the vehicle. If you want to continue to propagate car audio myths that have no basis in science, then go right ahead but you had better have a better argument than "that's wrong because what if something else is broken." [/QUOTE]

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