the car does come with a factory amp. from what i know factory amps never go bad. its a really rare chance. Since she is a gal, the best bet is to bring it to a car audio shop in ur area and let them check it out. I only had a problem on an accord same year, but the problem with the guys navi was a really bad loose connection at the back that fried out his navi really bad. good thing the car was recalled to fix occuring problems. Well Nights6789, u canprobe with a DMM (digital multimeter) and see if speakers do show lower than 4 ohms. just follow mr22na.