APM2 - Motors keep beeping when I plug in the battery

I have the signal and ground wire from 5 of my esc's plugged into the APM2, and the signal, +5v and ground wires connected from motor #1 to the APM2.

So only 1 esc is powering the APM2 when the battery is plugged in.

When I plug the battery in, The lig

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