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19
Red (12V+) positive supply wire
Once the ground connection has been completed, locate a source of positive
(+) 12 Volts that remains constant regardless of whether the ignition switch is
in the on or off position. Please note: the (12V+) positive supply wire may not
be red, please consult your vehicle manufacturer’s handbook for determining
the correct location of this supply wire. A good location to find a constant
12V (+) source is at the vehicle’s battery, main switch ignition harness or fuse
box. Make sure you install the fuse holder within 6 inches from the point you
have obtained power. The included fuse is designed to protect the power
supply itself. Use caution if you are using a fuse tap; severe and costly damage
may occur to fuse box if they are not used correctly. Make certain the circuit
you tap into does not fall “asleep” after the car ignition has been turned off.
Most new vehicles incorporate battery saver circuits which switch off power
to non-essential accessories after the vehicle has been switched off. Consult
the vehicle manufacture shop manual for location and descriptions of these
circuits.