Hypex UCD400MP

Hi everybody. Anyone familiar with Hypex modules needs help. I plan to make a subwoofer based on the Hypex UCD400MP module, having an amplifier and a power supply on one board. I can't figure out the connection. The J2.
1,2 pin connector is clear, hot and cold audio signal connection from the XLR connector. Signal ground from XLR connector from ground pin (1) to pin 5/14 J2?
Pins 7-8 - auxiliary power.
Pins 6, 9-13 for what, how to connect and where? In theory it is clear, in practice it is not clear! Please tell me, I will be grateful! Attached is the datasheet.
 

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