I never had any problems with my charging system before but about a week after i installed my system, the guage started to fluctuate a lot and my stereo wasn't raeceiving enough power to run. I changed the battery and it now holds at 12.5 when the car is off and about 14 when the car is running. My alternator is pushing 12.5 at idle and 14 at about 2000 rpm. I have unhooked the system but would like to have it back. I'm getting frustrated here. Thanx a lot guys any help is appreciated

 

Sounds like your stereo is taking more power than your alternator can provide. You need to upgrade your alternator.

 

I just dont understand why it was fine for the first week or so. I also have a pwer cap which is supposed to help. I had this same system in my s10 before and had no probs.

 

your alternator in your truck was most likely bigger then the one in your car..

i had the same problem as you are experiencing and i upped my alternator size to "120" and its having no probs now..although when the car is at idle and i turn it up past level 22 (max is 50) she cuts out...so for competitions i have to rev the crap outta the motor to keep the rpms high enough..

try the new alternator and see what happens

ps..your cap may be on its way out too..(thats why i dont use them..i find them to not be neccessary unless you have a 2000+ watt system)

iroc2nv