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<blockquote data-quote="n2audio" data-source="post: 5338024" data-attributes="member: 540940">380w a/b700w DI&#039;ve had this set up installed with two other electrical systems -- one a 75A alt, old but big battery -- gave me low voltage at idle, but ran fine while driving with minor dimming at high volume on the road.Same car as above with a 110A alt - same battery -- Steady 13.8-14v at idle, very slight dimming on the road.That car had a fairly demanding stock electrical system.Contour - 130A alt, stock battery, average condition.&nbsp; Pretty basic stock electrical system.&nbsp; Obvious dimming at high volume regardless of RPM&#039;s.I added an 8 ga wire from the alts to the batt (+) in all 3.I&#039;ve never had dimming noticable enough that it bothered me, but I want to improve it on this car.Does anyone have any experience with the big 3 for Contour/Mystique/Cougar?&nbsp; Before/after reports?I have plenty of 4 ga lying around.I&#039;ve found a wiring mod for the alt involving the Volt. Reg. sensor wire, but I don&#039;t want to go that route until I&#039;ve exhausted all the usual remedies.</blockquote>

[QUOTE="n2audio, post: 5338024, member: 540940"] 380w a/b 700w D I've had this set up installed with two other electrical systems -- one a 75A alt, old but big battery -- gave me low voltage at idle, but ran fine while driving with minor dimming at high volume on the road. Same car as above with a 110A alt - same battery -- Steady 13.8-14v at idle, very slight dimming on the road. That car had a fairly demanding stock electrical system. Contour - 130A alt, stock battery, average condition. Pretty basic stock electrical system. Obvious dimming at high volume regardless of RPM's. I added an 8 ga wire from the alts to the batt (+) in all 3. I've never had dimming noticable enough that it bothered me, but I want to improve it on this car. Does anyone have any experience with the big 3 for Contour/Mystique/Cougar? Before/after reports? I have plenty of 4 ga lying around. I've found a wiring mod for the alt involving the Volt. Reg. sensor wire, but I don't want to go that route until I've exhausted all the usual remedies. [/QUOTE]

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