well I mean, I have 2 Sundown SA-12 D4'* and an AudioQue AQ1200. I don't know if that helps. I really don't want dimming considering my battery already drops down to right above red at lights and such. :/

sounds like either your battery, alt or cable connections are going bad, you will definitely want to fix that before you add extra load.

if you play your radio at idle alot you may need to add a second battery. if you just drive normally and dont intend to stay in one spot, i think upgraded stock stuff will probably be alright, i use a bigger oem style interstate batteries, they are a little expensive but ive been impressed with there performance in some other vehicles. a stock 140a is alright if its working right. make sure you take apart and clean all your cable connections, grounds etc..

Audiogues draw quite a bit of power... I want ur subs

Don't you have enough subs? = P

I've had mine over a year and I doubt its even broken in yet.

just came across this, gm, factory alt. the benefit i see is listed someplaces as 100a at idle,
most of the writeups i saw were for trucks but i think with a little bit of mods would be a cheap upgrade for any gm,
AD244 (130-145amp that comes in the NBS trucks (99-05 only)

http://www.j-body.org/forums/read.ph...4&t=156234&p=2

some good car info there:

list of available jy sources:
Cadillac
Escalade 5.3l,6.0l (2003-2004)

CHEVY
Chevy Astro Van 4.3 liter engines(2001-2004)
Chevy Avalanche 5.3, 8.1 liter, engines(2002-2004)
Chevy Express 4.3 , 5.0l, 5.7, 6.0, 6.5, 8.1 liter engines (2001-2004)
Chevy Silverado 4.3, 4.8, 5.3, 6.0, 6.5, 6.6, 8.1 liter engines (1999-2005)
Chevy Suburban 5.3,6.0,8.1 liter engines (2000-2005)
Chevy Tahoe 4.8,5.3,6.0,8.1 liter engines (2000-2005)

GMC
GMC Safari 4.3 liter engine (2001-2004)
GMC Savana 4.3,5.0,5.7,6.0,6.5,8.1 liter engines (2001-2004)
GMC Sierra 4.3,4.8,5.3,6.0,6.5,6.6,8.1 liter engines (1999-2005)
GMC Yukon 4.8,5.3,6.0,8.1 liter engines ( 2000-2005)

Thanks for the good info jw. Do you have any idea what mods would be necessary to get these in a car with the 105a alt stock?

most of the blazer guys and j body guys were talking about slightly bigger body, some had to modify there brakets, some had to run bigger belts or smaller alt pulley, some just had to remove part of there stock bracket. i couldnt find anywhere were anyone had modified a w or h body. but just as a guess if you have a car after 2000 it will probably have the right connector already and require minimal mechanical mounting mods

Hmm. Well I don't have lots of resources available should I run into a problem midway through the install so I guess I need to do some research to see what'* needed for certain before I start on a project like this.

if you find out, i would be interested, i couldnt find anyone even with a similar engine who had done it