HELIX D FOUR Manual page 15

REM
14
The remote lead should be connected to the remote
output / automatic antenna (aerial positive) output
of the head unit / car radio. This is only activated
if the head unit / car radio is switched on. Thus the
amplifier is switched on and off together with the
head unit / car radio. This input needn't to be as-
signed if the Highlevel Input is used.
GND
15
The ground cable should be connected to a com-
mon ground reference point (this is located where
the negative terminal of the battery is grounded
to the metal body of the vehicle) or to a prepared
metal location on the vehicle chassis i.e. an area
which has been cleaned of all paint residues. Rec-
ommended cross section: min. 10 mm² / AWG 8.
15