How do you get a 1993 antenna to work on a 1990? - ZR-1 Net Registry Forums

limey · 02-21-2012

Anyone know?

secondchance · 02-21-2012

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 · 02-21-2012

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.

02-21-2012	#1
limey Join Date: Oct 2008 Location: tampa Posts: 537	How do you get a 1993 antenna to work on a 1990? Anyone know?

02-21-2012	#2
secondchance Join Date: Aug 2006 Location: McLean, VA Posts: 3,717	Re: How do you get a 1993 antenna to work on a 1990? 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...

02-21-2012	#3
368zr1 Join Date: Jul 2005 Location: Annapolis, MD Posts: 12	Re: How do you get a 1993 antenna to work on a 1990? 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.