Installation Procedure

WARNING: This page is about a different car, the 2003 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.

Turn the ignition to the ACC or ON position.
Turn the radio ON.
Insert the replacement antenna (mast) plastic cable (5) into the power antenna housing, with the serrated side of the cable facing slightly forward and toward the RH side of the vehicle.
When resistance is felt, continue to gently push until the tip of the cable engages in the motor.
While guiding the plastic cable into the housing, have an assistant turn the radio OFF.
Quickly align and guide the antenna mast (4) into the power antenna housing.

Fig 1: Installing Antenna Mast With Contact Spring
Courtesy of GENERAL MOTORS CORP.
Push the contact spring (flared end up) over the antenna mast and into the power antenna housing.
Install the antenna mast nut (2).

Fig 2: Antenna Mast Nut
Courtesy of GENERAL MOTORS CORP.
Using the socket (1) provided, tighten the antenna mast nut (2).
Turn the radio ON and OFF, allowing the antenna to cycle several times; in order to check antenna operation and until the antenna mast fully extends and retracts.
(Usually one or two cycles are sufficient to fully extend the mast.)
Turn the ignition OFF.

Fig 3: Tightening Antenna Mast Nut Using Socket Provided
Courtesy of GENERAL MOTORS CORP.