1. Remove the power
unit that is in your car, keeping track how in general the unit is
mounted so you have an idea how the new one is to fit. The unit is held
in by the outside trim nut, where the mast comes out of the car, and
generally a bolt at the base of the power unit. As to removing the
interior trim to gain access to the unit, this varies per car. Generally
the trim is held in with clips or sometimes screws. The best is to take
your time in figuring out which way it comes off, or seek your service
manual.
MOUNTING:
2. Install the new power unit in the place of the old one. Many times
you can use the original outside body trim/angel feral and nut, instead
of the 0-30 degree head and nut that comes with the new unit, this makes
for a cleaner outside fitment. First start by fitting this outside trim
and fasten the outside nut. Then at the bottom of the drum assembly you
will see two studs, only if possible, use the original lower bracket,
bolt it to the base of the power unit, or mount the flat bar with holes
to it to a secure place on your car body, one end of the flat bar is
secured to one of the lower tabs and the after the power unit is mounted
bend it so it can be secured so the lower section of the power unit is
secure, which ever way works best for your model car. This when done
should be similar to how the factory bracket was mounted.
ELECTRICAL:
3. If you have a power unit that has a relay or control box it stays
with the old power unit and is not used with this new power antenna. At
the plug that plugs into either the power unit or that plugged into the
relay or control box, .... it doesn't matter how many wires that your
original power unit has as we are going to use ONLY TWO or THREE of
them.
FIRST,
Test with a test light or volt meter, which ever you have, test what
wire has 12 volts in the harness on all the time when the KEY OFF and
the RADIO OFF. This is the wire that you will need to connect to
the RED wire of the New Power Unit to.
If there are several that are hot all the time, connect to one of them.
SECOND,
Then with the KEY ON turn the RADIO ON and again take the test light or
volt meter, and see which wire NOW in that plug lights up or has 12
volts, if you have several that are now powered make sure you choose the
one that is controlled by the radio, and then connect the
GREEN or BLUE
wire of the power unit to it.
THIRD,
The Black wire is connected to the Chassis Ground, anywhere
or in the plug if you know which wire it is. If you have a
volt meter you can set the meter to OHM with sound and probe the wires
until the meter makes noise, that wire is your ground, connect to it.
Schematic of the New Power Unit:
Red ........ Wire needs 12V all the time,
Key on and off.
Green or Blue
..... Wire needs power only when the Radio is on.
Black ...... Wire is a Constant Ground.
TIP: Many power units have a plug that you can cut off and wire to your
new power unit so you can plug it directly into the factory plug. Use
this method if has a plug that you can cut off.
4. Connect the wire that runs to the radio for reception, the large
black wire from the new power unit. Other than putting the interior trim
back, your New Power Unit should now Work.
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