B- Terminal; Speaker Terminals; Remote Control Input; Controls And Functions - Soundstream TRX10000 Owner's Manual

Controls & Functions
12. B- Terminal (Chassis ground)
To avoid unwanted ignition noise caused by ground loops, it is essential that the
Amplifier be grounded to a clean, bare, metal surface of the vehicles chassis.
Note : GROUND WIRE SHOULD NOT BE EXTENDED MORE THAN 3 FT (1 METER).

13. Speaker terminals

14. Remote Control Input

Remote Bass Boost Control : This control adjusts the Bass Boost gain for the amplifier's
speaker output (0 ~+18dB)
8
REM
GND BATT
POWER
SPEAKER