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<blockquote data-quote="KooK" data-source="post: 8309405" data-attributes="member: 567461">Vehicle:Vehicle:&nbsp; 1998 Honda CivicAlternator: Factory 70 ampSetup:Amps:4 channel - (Old school) Rockford Fosgate x500 (62.5rms @ 4 ohm x 4 OR 125rms @ 2 ohm x 4)Intended purchase Subwoofer - *unknown, going to buy*Subwoofer:Intended purchase Either x2 Sundown Audio SA-8 V2&#039;s or x1 Sundown Audio SA-10Electrical system:Intended purchase XS-Power aux. battery, either XP750 or XP950I plan on keeping with one size ground and feed audio wire, so I will be doing the big 3, running my feed and an extra ground to the trunk/aux battery all on the same gauge; unless told otherwise here.Audio system intentions:This car is my daily driver, it will not be entered in competitions, I am planning on running a sealed box for the subwoofer(s).&nbsp; Music listened to is mostly rock, some rap, but not a whole lot of stuff that has long bass notes.Questions:I&#039;m wondering if running a 4ga main power would be the correct size.&nbsp; Given my alternator output, a secondary battery in the trunk, and desired setup, I know I am going to be stressing my electrical a little, but if it&#039;s truly worth my while to run a 1/0ga I will.&nbsp; If it is recommended for me to run 1/0ga to the back, can I use 4ga for the big 3 considering alternator output isn&#039;t high.</blockquote>

[QUOTE="KooK, post: 8309405, member: 567461"] [B]Vehicle:[/B] [B]Vehicle:[/B] 1998 Honda Civic [B]Alternator:[/B] Factory 70 amp [B]Setup:[/B] [B]Amps:[/B] 4 channel - (Old school) Rockford Fosgate x500 (62.5rms @ 4 ohm x 4 OR 125rms @ 2 ohm x 4) Intended purchase Subwoofer - *unknown, going to buy* [B]Subwoofer:[/B] Intended purchase Either x2 Sundown Audio SA-8 V2's or x1 Sundown Audio SA-10 [B]Electrical system:[/B] Intended purchase XS-Power aux. battery, either XP750 or XP950 I plan on keeping with one size ground and feed audio wire, so I will be doing the big 3, running my feed and an extra ground to the trunk/aux battery all on the same gauge; unless told otherwise here. [B]Audio system intentions:[/B] This car is my daily driver, it will not be entered in competitions, I am planning on running a sealed box for the subwoofer(s). Music listened to is mostly rock, some rap, but not a whole lot of stuff that has long bass notes. [B]Questions:[/B] I'm wondering if running a 4ga main power would be the correct size. Given my alternator output, a secondary battery in the trunk, and desired setup, I know I am going to be stressing my electrical a little, but if it's truly worth my while to run a 1/0ga I will. If it is recommended for me to run 1/0ga to the back, can I use 4ga for the big 3 considering alternator output isn't high. [/QUOTE]

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