Very usefull manual. From my point of view there are needs more clearables images.
Text excerpt from page 28 (click to view)
GM-X944
Connection Diagram
Fuse (30 A) � 2 Grommet Special red battery wire [RD-223] (sold separately). After making all other connections at the amplifier, connect the battery wire terminal of the amplifier to the positive (+) terminal of the battery.
Fuse (30 A) � 2
Ground wire (black) [RD-223] (sold separately). Connect to metal body or chassis.
RCA input Connecting wires with RCA pin plugs (sold separately).
Amplifier with RCA input jacks
Car stereo with RCA output jacks External Output For details on how to connect to RCA input jacks A and B, see the �Connecting the Speakers and Input wires� section.
Front side
RCA output jack
RCA input jack B RCA input jack A
Back side Fuse (30 A) � 3
Connecting wires with RCA pin plugs (sold separately).
Speaker output terminal
System remote control wire (sold separately) Connect the male terminal of this wire to the system remote control terminal of the car stereo (SYSTEM REMOTE CONTROL). The female terminal can be connected to the auto-antenna relay control terminal. If the car stereo does not have a system remote control terminal, connect the male terminal to the power terminal through the ignition switch.
