Before You Start Your Installation; Upgrading A Factory Stereo - zapco ST-X DSP Owner's Manual

ZAPCO highly recommends that a fuse or circuit breaker be placed within 18"
of the battery. Although you will add a fuse or fuse block near the amplifier it
is still a possibility that a pinched power wire between the component fuse
and the battery could result in a short, or even a fire. The protection device
should be placed where it can be accessed easily and all wiring should be
routed safely and correctly according to the following guidelines:
Do not run wiring close to hot or spinning objects.
Always use wire grommets when routing wire through the firewall or any
other metal panels.
Make sure that the potential for pinched wiring is avoided by routing all wires
away from moving hinges and seats. This also includes brake, gas and clutch
pedals, hood and trunk hinges, etc.
Continuous exposure to excessive sound pressure levels may cause permanent
hearing loss. ZAPCO strongly advises that you use common sense when setting
volume levels. If you experience ringing in the ears, it could cause permanent
hearing damage!
When connecting our amplifiers to pre-wired stock speakers, care must be
taken that there are no common connections between left and right speaker
wires, i.e. two or more speakers using the same ground connection (very
common in pre-85 cars), as this will cause the amplifier to go into immediate
protection or may cause damage to the amplifier. Output connections are not
common chassis ground. Please follow the hookup instructions in this owner's
manual. Any questions should be directed to your local ZAPCO dealer.
If you are upgrading a factory stereo the ST-X DSP amps have a separate speaker
level input plug that senses current, so you do not need to run a turn-on wire.
However, auto-on is not useful in all cars as the amplifier can come on when
you do not want it on, because of the car's electrical system. The ST-X DSP
amps have a switch that allows you to defeat the auto-on if you find you do
not want to use that function.

Before you start your installation

Upgrading a Factory Stereo

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