My car (MTX, 2.5 98.5)tries to shutdown while driving, if its in gear, and engaged, it just jerks, the wipers turn on for a sec and the abs light comes on. if i am not engaged, it simply stalls out. I think this may be due to a bad battery, which may be caused by my amp (1200w) and i dont have a farad cap. If my battery is dying, could this happen?