'04 Chevy Colorado
Ext. Cab
I-5
Z71
65k miles
Battery replaced during Summer 2008

400-watt 4-channel amp running 2 6x9s & 8" sub; grounded to chassis; remote power connected to power dependent fuse

Battery Testing Results from today (3/16/10):
543 CCA (rating = 600 CCA)
Alternator putting out 14V

Occasionally I get:
Battery message in the DIC
Weak cranking
Radio doesn't work properly (clock is on, but no buttons work; no sound)
Radio lights dim & brighten for a few seconds; volume also fluctuates a little

Happens regardless of sitting and/or running time (it's sat an entire weekend with no problems; however after driving to work in the morning then leaving for lunch it has had issues)

I plan on disconnecting the amp to test that theory; however, the problem is sporadic and I have no clue how long it might take to test it.

Also, the lights (headlights & interior) dim quite a bit when using the windows; driver side window won't always respond to window switch use (I don't hear anything either)

3/17/2010 12:37:49 PM

wait for something to fail, no use easter eggin and replacing parts that are not bad

3/17/2010 1:36:16 PM

I just don't wanna go bm.

and the non-functioning window is annoying and could become a huge problem

3/17/2010 4:01:11 PM

!

3/17/2010 11:25:21 PM

everything but the window sounds like a voltage regulator on the alt.

3/18/2010 1:20:38 AM

anyway to check that?

3/18/2010 10:09:31 AM

replace/clean battery terminals.

3/18/2010 4:38:10 PM

battery checked out fine, so what makes you say that. terminals are spotless.

3/18/2010 5:29:31 PM

hmm

3/20/2010 10:26:24 AM