Electric antenna does not stop running after car turned off and key removed

not at all , check your battery first and if good ,try electrical switch.
unless you have green security light that stays on
and than the key will have to be re-programmed

Most electric Antennas require two people to replace. First turn key on watch and listen to antenna motor as some one turns on radio do this several times. Now remove spanner nut the antenna mast goes through then have them turn radio on again this you assist the rest of the mast out of motor assembly watching what side the teeth are on the plastic cable . Now take new mast and fully extent it and lubricate with a machine oil 3 in 1 works great. slowly lower into housing trying to get first tooth hooked or close then turn radio off this will retract the antenna into the assembly hopefully on the first try it should be all the way in. don't worry re install retainer parts raise and lower several times the overrun clutching will get it in time.

You have to hold the key near the antenna ring that surrounds the key hole. While I was waiting for my new lock cylinder to arrive, I pulled off the steering column cover and detached the electrical part of the ignition. I was then able to start and stop the car by turning that switch with a flat blade screwdriver, but I had to have the key near the antenna ring in order to crank the starter. Once the car is running, you can put the key back in your pocket.

If i remember correctly this cars ant is located on the pass/side fender, the best way without trying to pull the fuse because then you will loose other systems, look under the passenger side part of the dash, you will need to remove the cover if its still there, most older cars are missing this cover, there are a few screws holding the cover remove them and drop and pull cover out, next look under the dash you will see wires coming from the fender area towards the radio there are green and theres a plug there, look close to the right and just unplug the connector, have the key on so you can here when the ant motor stops running and this will take care of that problem. good day.

under left side of front hood sounds like air pump for rear struts a leak in the suspention system & u may have a antenna issue also un plug antenna in trunk & listen for motor under hood if it thear disconect air pump under hood.

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Automatic Electric Antenna
Removal

1. Lower electric antenna (18850) .

1. Remove rear retaining screws of RH front wheel splash shield for access to antenna lower retaining bolt.

1. Remove lower retaining bolt.

1. Remove radio antenna nut (18865) from top of motor tube and remove electric antenna through fender/splash shield access.

1. Disconnect signal cable and motor wire connector(s).

Installation

1. To install, reverse Removal procedure.

1. Tighten top radio antenna nut to 6-8 Nm (54-70 lb-in).

1. Tighten lower electric antenna retaining bolt to 5.8-7.8 Nm (51-69 lb-in).

1. Check operation of electric antenna and radio chassis .
   
   Automatic Electric Antenna
   
   
   

mast
Mast, Power NOTE: A power antenna mast which is bent or broken can be replaced without replacing the motor and tube assembly.
Removal

1. Remove radio antenna nut (18865) and radio antenna stanchion (18919) .
   
   
   
   

1. Loosen retaining nut inside tube using 14 mm (9/16 inch) socket, and slide nut part-way up mast.

1. Raise antenna to run plastic drive wire at bottom of mast out of motor. Note direction of teeth on plastic drive wire.

1. Saw off damaged portion of antenna mast. Remove burrs from mast and slide nut and contact tube off stationary tube.

Installation

1. With the teeth on the plastic drive wire facing toward motor on antenna, push end of plastic drive wire of replacement mast assembly down into tube. Push it around curve at bottom of tube until end enters drive mechanism.

1. Run motor down while pushing on plastic drive wire until about 305 mm (12 inch) of wire has been drawn into the tube. Stop motor and insert bottom of antenna mast into tube. Lower mast.

1. Slide contact tube and radio antenna nut down antenna mast. Tighten nut to 0.45 Nm (4 lb-in).
   
   
2. Raise and lower antenna several times to ensure proper operation.

I assume that the power antenna unit is an original equipment unit, if so.
1. Does it run for about a minute then stop? If this is the case, your antenna shaft needs to be replaced. This is a very simple procedure that your local radio install shop can do for you in about 20 minutes.
2. If the motor never shuts off as long as the key is on, you probably have a defective relay on the antenna motor. At this point you need to replace the entire unit. A job that can be a bit pricey because of the price of the unit itself. A cheeper fix is to replace the power antenna with a manually telescopic unit, (no motor), or a fixed unit, (doesn't go down). If you opt for the latter, remember to unscrew or lower the antenna in automatic car washes!

The antenna is wired to go down when the key is turned off. The motor is probably stripped out. You need to replace the motor at the base of the antenna, or unplug the bad one to make it quit running with the key off

to stop the noise from returning, simply disconnect the electrical connector near the antenna motor (follow the wires out of the unit). this unit may be disassembled and thoroughly cleaned (especially the copper electrical contacts) to restore it to near new condition sometime in the future....about 3 to 4 hours for a novice.the clicking is due to the motor "coming alive" when an electric signal can get through the oxidized contacts. prolonged "clicking" may not harm the unit...there is some chance the antenna's nylon gear track has separated...try to pull up on the antenna itself after disconnecting car battery. if it cannot be pulled up, then chances are good for earlier described restoration. if motor housing looks VERY corroded, a full replacement of unit is best sol'n.

There seems to be an intermittent electrical failure on the wiring from the radio to the power antenna.
Is this power antenna the original one?