Most car stereos have large power pulling subs with no extra battery. Your factory is a couple hundred CCA. The fuses on my KC 130s are 20a and I have four, but even if I had 9, 9x20(max) is still 180. Which means even on a cold day with all 9 lights on you should still be able to start your jeep. And if they are LED, I am pretty sure you would run out of places to put lifts before your battery ran out of juice to power them.