a/d/s/ PQ40.2 Owner's Manual page 14

speaker connections for stereo configurations
Minimum recommended impedance is 2 stereo.
Speaker terminals accept up to AWG #12 speaker wire.
speaker connections for bridged configurations
Minimum recommended impedance is 4 when bridged to subwoofers and 4 when bridged to full range
speakers. Speaker terminals accept up to AWG #12 speaker wire.
13
Connect to 12V turn-on
lead from source unit
Connect to chassis of vehicle
Factory chassis ground
60A
Connect to
chassis of vehicle
fuse
60 Amp fuse
less than
18" from
battery
60A
60A