Impala/Caprice Installation Page 8
Attach the yellow wire from the tail light side of the factory harness to the brown/blue wire on the left turn signal plug (blue dot). Attach the dark green wire from the tail light side of the factory harness to the brown/blue wire on the right turn signal plug (red dot).
After wrapping with some electrical tape, this is what it should look like. Plug the factory connector back together and secure the harness back under the trunk lip. Shown is the older style rubber connectors.
Note: The car can be driven now if you install the shorting/test plugs.
Under the drivers side dash, look for this black connector attached to the steering column (arrow points to connector and cut wires). You need to cut and strip the light blue and dark blue wires approximatly 6 inches from the connector as shown.
Attach the 2-pin signal connectors to the wires you just cut using the wire nuts provided and as follows: the 2-pin female connector (the right most connector shown in photo) attaches to the wires that lead to the steering column connector - gray from the 2-pin connector attaches to the light blue wire from steering column connector, and the blue from the 2-pin connector attaches to the dark blue wire from the steering column connector. The 2-pin male connector (left most in photo) attaches to the wires leading into the wire harness as follows: gray wire from 2-pin connector to light blue, and the blue wire from 2-pin connector to the dark blue wire.