Owner's Manual

INPUT SIGNAL
(CHOOSING THE HIGH OR LOW INPUTS)
The STA amplifer control panel input signal connects to the head unit's High Level (speaker wire) output
OR Low Level (RCA) output-provided the radio is so equipped with Line Out. A ded i ca t ed subwoofer or
low level signal will deliver the best performance. If unavailable use the high l evel inputs , as will be the
case with most factory head units. (Note once you have chosen whether you will use the High Level or
Low Level inputs follow the corresponding wiring di agrams on the following pages)
NOTE: Never use BOTH High and Low Level inputs at the same time . You must select one or the other!
High Level Input Connections (fig 4)
For radios with only speaker outputs (including most Factory source units ). Using the 4-pin Molex style
wiring harness provided , splice directly into the radio's speaker outputs. Do not break the connection with
the source (radio) and the speakers. Be sure to mainta in proper speaker polarity.
Wire Color
Gray
Gray w/ Black Stripe
White
White w/ Black Stripe
Connect to
Left+
Left -
Right+
Right -
Another option is to tap off the existing front or rear full range speakers . Once again be sure to follow
the correct polarity.
NOTE: If using the high input, the amplifier will turn on automatically when it senses a si gnal from your
radio. You will not have to hook up the REM wire in this case.
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