MTX Thunder 421D Quick start guide

Or
Speaker Level
Input
RCA Input
AMPLIFIER
CAR STEREO
(SOURCE UNIT)
REQUIRED INSTALLATION
TOOLS:
For installation options go to www.mtx.com
Adjustable Wrench • Crimpers • Screw Driver
Utility Knife
Power Drill
Part #: NDM219
Amplifier Input Connections
Remote/Power Antenna
Turn-On Wire
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AMPLIFIER
For installation options go to www.mtx.com
Minimum Wire Size:
Power: 8 AWG. Ground: 8 AWG.
Disconnect
Battery Negative (-) Cable
Prior to Installing Amplifier
Connect to Car Stereo
Remote/Power Antenna
Turn-On Wire
Grommet
Remove Paint
from Metal
Ground To Metal Of Vehicle
Amplifier Output Connections
To Optional
Second Woofer
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