The reason I was replacing my antenna was because it was bent and wouldn't go down to hide . The top one is the new one the bottom one is the old bent one .
To replace your antenna by the extension cable some cares have the A/C vent ( Crotch Cooler ) tube under the steering wheel , Removes that and then remove the kick panel . Reach up underneath by the hood lever and you will feel the extension cable , Pull down and disconnect .
Now if your gonna place the whole cable to the radio then you remove the speed odometer face and remove the stereo then disconnect the antenna cable . But remember in both methods you still have to remove the kick panel where the fuse box is located . You do no have to remove the crotch vent tube for this .
The reason you remove the face plate for the speed odometer is cause the antenna cable runs over the plate and is clipped up above so before pulling the cable remove these clips by cutting the green tape and when you run the new cable remember to put these back on .
Then you unscrew the outside of the antenna then in my case both photos are showing either from the extension or the radio , Some people use stereo wire in this case I had a roll of thin hard wire and tied it around the male end and secure it and then pull the outside of the antenna and let the wore loom just follow the path . If you don't use some kind of wire it will be hard to put the antenna cable back down the hole especially with all the wires by the fuse box .
Make sure when you remove the outside antenna that the plastic guide comes out because the new one comes with a new one . The reason for the hard plastic is cause its a guide when closing the antenna .
When your putting the antenna back you reverse the procedure pull from the inside of the wire and pull the antenna cable through whether you go to the radio or to the extension , then put everything back .