Wiring cont.
The use of twisted pair interconnects is recommended for all installations to minimize noise. When routing these cables through the automobile, try to keep them away from factory wiring harnesses and other power wiring. If you need to cross any of this wiring do so at a 90 degree angle to reduce the possibility for noise problems.
Source
Factory Wiring 
Amplifier
When working with power connections it is always recommended that you disconnect the
battery to prevent accidents!The ground should be connected to the amplifier first before making any of the other connections. This wire should be as short as possible (24 inches or less) and connected to a paint/corrosion free solid metal area of the car’s chassis.(See Diagram Below) Use the same gauge wire as recommended for the amplifiers power connection to the battery. Adding an additional ground wire between the car battery’s negative post and the car chassis of this same gauge (or larger) is also recommended. See diagram below.
GROUND
24" or less
Vehicle's
Chassis
Additional
Ground Cable
Vehicle's |
Chassis |
REMOTE |
|
18" |
or less |
FUSE |
12V
BATTERY
| Factory | To Vehicle's | |
| Ground | ||
|
Charging System
If you ever need to remove the amp from the vehicle after it has been installed, the ground wire should be the last wire disconnected from the amplifier, just the opposite as when you installed it.
A fuse must be installed within 18 inches of the battery to protect the power wire feeding your amplifier. This fuse should be of at least the same value used in the amplifier but no higher than the capacity of the wire. See the chart on next page for wire size and fusing recommendations.
KX100.2 & KX200.4 Technical Manual
Version 2.0
Page 8
