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| The trunk light
mounts in the square opening of the trunk
lid underside just to the left of the
center latch bracket.The trunk lights
operate by means of a mercury switch
inside the socket that turns on the light
when the socket is moved to a certain
angle. The power to the trunk light is
always hot. If you find a trunk light
from another Mustang or Ford from the
70's, the only things to remember are 1.
get a light that mounts in a similar
angle and side of the hole in the trunk
lid as your Mustang, and 2. get as much
of the wiring run as you can, preferably
right up into the left 1/4 panel and the
plug it connects to. |
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| You can install a
trunk light relatively easy. The main
thing is to find a good condition trunk
light and wiring harness. The
"harness" actually is just one
wire because the light socket itself
grounds to the trunk lid to complete the
circuit. You can find good trunk lid
lights from many Ford cars of the era in
salvage yards and they will all work. The
original bulb is a smaller #63 bulb
however you can use a #1156, as you see
here, and the light is much brighter. The
#1156 bulb is a good bulb for the hood
lights as well. The trunk light bulb uses
a single contact at the base. |
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| The wire for the trunk light is
fed through the trunk lid along the left
inside. You can use the opening at this
corner to help feed the wire through. It
is then held in place along the trunk
hinge and into the trunk. |
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| The hot wire plugs
into a female bullet connector on the
main harness that runs along the inside
of the driver's side 1/4 panel. Roughly
at or just in front of the wheel well
behind the rear interior panel, you can
gain access to the connector if it is
hard to reach from the trunk. |
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| The connector end
is red and the wire from the harness is a
light green with a yellow stripe. Some
later model lights have a square grey
connector at the end of the trunk light
wire. These you will have to cut the
connector off and replace it with a male
bullet terminal from an auto parts store.
If your car didn't have a trunk light
originally, then you will have to locate
the other end of the green and yellow
stripe wire at the dash. You will find
this male bullet connector on a green
with yellow stripe wire coming out of the
main harness as the harness comes from a
rectangular opening behind the dash and
up about the level of where the padded
dash meets the metal lower dash. From
this connector, just make a wire with a
female bullet connector on one end to
connect to the feed wire and the other
end with a flat spade terminal to plug
into the fuse box under the dash to a
terminal or some other 12v source that is
always hot. Now you can always see your
trunk contents easily at night. |
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