Include your email address to get a message when this question is answered. It may save you a lot of time and money. That will effectively isolate the turn-on signal from the head unit from the multiple amps, which will hopefully allow you to avoid any issues with current overload. Help answer questions Learn more. Dry cell batteries are better than wet cell batteries because the latter could spill battery acid in your car if they leak. You can use the same ground block for your other audio components, which is also a good way to avoid ground loop issues. Connecting multiple amplifiers to an RCA audio source will provide superior signal quality over speaker level connections from the stereo head unit.
Whenever massive amounts of power is needed, it's directed from the alternator much more than the battery, giving you more power.
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