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Owner's Manual

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12
Guidelines on Using a Voltmeter to
Locate Power and Ground
1. First set your voltmeter to the continuity
setting (should beep when you touch the red
and black probes together, telling you they are
shorted).
2. Find a ground on the car somewhere, like a
bolt under the dash,
or
a metal cross member.
3. Put the black probe on that ground, and
touch the back
of
each exposed wire connector
in the mirror harness with the red probe.
4. For each wi
re
that beeps, that means that
wire is grounded. Turn the ignition to the on
position, then back to off, and make sure it
beeps regardless
of
the ignition position.
5.
Put the voltmeter into VDC mode, to
measure DC volts, turn the ignition to the on
position.
6. Put the black probe on the ground wire
found
in
#4.
7. Touch each
of
the wires
in
that harness with
the red probe, and note which one(s) gives you
+ 12-14 volts, turn the ignition off to verify that
the volt readings go down to zero or close to
zero.
8. That should define which two
ports
in
that
harness into which you would plug
Mirror'TI
the Red to
Clear the "cl utter" from
your dash by wiring your
radar detector straight into
your fuse box.
Innovative Design
And
Precision Manufacturing
Fo
r
more
information
please
visit
WWW
.
MIRRORTAP
.
COM
©2016 J28 Design Inc.
7 28-028 41 u -s 7
HardTap Power Cord
Radar Detector Hardwire Kit
With In-line Fuse
DC PLUG X 8' OVERALL LENGTH
WITH 2 AMP FUSE

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