what do i need to upgrade?
Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=97691
Printed Date: July 06, 2025 at 2:02 AM
Topic: what do i need to upgrade?
Posted By: comptech35
Subject: what do i need to upgrade?
Date Posted: October 04, 2007 at 10:22 PM
hi i just had my system installed spent alot of money on it . and now i have issues with voltage . ive been talking to alot of shops on what to do about it and they all want me to spend $1200-2000. some say alternator & battery, and some say isolator & battery . i know what im doing when it comes to car's in terms of repair and mods . im just not to good wit audio. i want to do a 2nd alt. or just a higher amp alt. if thats enough and yellow top optima but they all said the yellow top will do no good . i was hopeing to get some other opinons because the shops just want to make money . the big 3 are already on my to-do list. car: 1988 5.0 gt hatchback mustang amp: Hifonics BXi 2006D sub: mtx thunder 9500 wiring : 1/0 gauge all the way back, battery: optima red top running the car and the system for now box: ported box built to specs by the shop facing the bottom of the car to reduce rattle
Replies:
Posted By: Alpine Guy
Date Posted: October 04, 2007 at 10:39 PM
A high output alternator will be all you need. Your system is too large for the factory alternator, but not massive by any means requiring more battery's or anything.
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2003 Chevy Avalanche,Eclipse CD7000,Morel Elate 5,Adire Extremis,Alpine PDX-4.150, 15" TC-3000, 2 Alpine PDX-1.1000, 470Amp HO Alt.
Posted By: comptech35
Date Posted: October 04, 2007 at 10:44 PM
will a 200 amp alt. be enough
Posted By: comptech35
Date Posted: October 05, 2007 at 1:05 AM
is the 200 amp alt. gonna be enough?
Posted By: jmelton86
Date Posted: October 05, 2007 at 4:02 AM
*factory 75amp alt. -Just throwing it in there. As long as the 200amper will power your audio system (all fuse sizes added together) plus having about 25+ amps for your vehicles' electricals, you'll be good. ------------- 2013 Kia Rio -90a alternator
DDX470HD GTO14001 GTO1014D (x3)
Big3 in 1/0G
1/0G to GTO14001
Posted By: jmelton86
Date Posted: October 05, 2007 at 4:06 AM
Do your Big3 first. You may not need a HO alt if you don't use a lot of accessories at once, plus your audio system. With a 200a alt, 2g wiring is all you'll really need for the Big3. But hey, you might as well use the 2/0g wiring as well. ------------- 2013 Kia Rio -90a alternator
DDX470HD GTO14001 GTO1014D (x3)
Big3 in 1/0G
1/0G to GTO14001
Posted By: comptech35
Date Posted: October 06, 2007 at 7:29 AM
there is no fuse on the amp . the amp is 2000 watt rms they dont have a maxx watts posted on the site. the fuse on the 0/1 guage cable is 200amps. maybe the amp has a internal fuse . that doesnt sound right to me but i guess it could be. i did 2/3 of the big 3 i did the chassis ground and the engine ground with 2 guage but the ones on the alternator are on a wierd clip there way to small look like 8/10 guage wires. there's two of them though .
Posted By: comptech35
Date Posted: October 06, 2007 at 7:34 AM
i dont use any accessories except a valintine radar and a autometer tach but i dont think they drain much power
Posted By: CapSS92
Date Posted: October 07, 2007 at 3:00 AM
200a should be enough
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