what can i do to stop my light from flickering at night when i have my system cranked[/quoteD
Do some electrical upgrading, such as replacing your alternator
UPgrading your alt is a good solution. Sometimes even electrical upgrades aren't enough. You could try a higher ohm load to cut down on the current draw from your amp. I have my amp wired at 4-ohms until I decide on a suitable route. Batteries and cps are only good if you are playing your music with the car off. Your alt is what takes the brunt of a beating.