Since nothing has happened yet, no, you don't (yet!) Lets do the math.
1400 W at approx 85% efficiency (just guessing, the Alpine might be higher as it's Class D) = 1647 Watts at full tilt
1647 Watts / 13.9 volts = 118.5 Amps required to get you to full tilt
at 110 amp alt, lets say there...