How do you get a 1993 antenna to work on a 1990?

[limey]

Anyone know?

[secondchance]

I did this last year. Early antennas have external relay whereas later antennas have internal relay. I had to look at the electrical schematic but basically I cut the wires going to external relay on 90 and connected directly to later version antenna - can't remember wire colors though...

[368zr1]

Disconnect the negative battery cable.

At the antenna relay located under the center hatch trim panel disconnect connector C1 a 3 pin plug with the following wires.

Pin A Orange wires (Hot all the time) connect to Orange wire 93 antenna.

Pin B Pink wires (Hot in ACCY or Run) connect to White wire 93 antenna.

Pin C Black wires. Connect to Black wire 93 antenna.

Braided ground wire goes from antenna case to car frame.

There are a bundle of Black wires that don't connect to anything and act as a ground plane.