Possible electrical (or alternator) problem? Options

[travisxcore]

I don't know if its just cause this is an older car or if my alternator might be going bad but does anyone elses interior/headlights flicker and get dimmer when their electrical fans cut on? Or when I have my subs on (not really that high powered either) my lights dim. I know when I have them up (I have a 1500 watt amp w/o a cap) that'll cause it. Just wanna check to see if I should get a new one.

[Galcobar]

An alternative explanation is poor ground connections, which prevent current from flowing freely. The stock wiring's pretty thin to begin with, and as they age they build resistance, become brittle and can break. Upgrading these is often a good way to stabilize an electrical system, and is advisable whenever you put additional load on your car.

One comes off the battery negative post, another connects between the alternator bracket and the passenger-side strut tower, and a third between the transmission and the strut tower.