I had the same issue; the old covers are probably underneath the ash tray. The tips break off and the covers falls/rolls behind the console.
You must remove the complete console and armrest (the wood which travel around the radio/climate control/and gear shift-one unit-to get to two screws-to release the armrest unit) to change these doors. Also, you may want to order a storage box from Phil (on this site- under parts) to replace the cassette case (since no one uses cassette anymore).
This job is a little evolved; the first time out, but it gets easier. You will need two radio removal tools (order on eBay or buy at Best Buy) they are the only special tools you will need. I am providing instruction; you can also search this site for-console removal.
Console removal!
The console only had four screws holding it in.
The press and open door attached to the console has a lining which is designed for removal. Remove the lining and you can see two screws.
Use the special radio (two small tools)removal tool to remove the radio and push out the claimant control from the radio slot.
Once you remove the claimant control, you can see the other two screws.
The claimant control was harder to remove than the radio because of the electronic attachments. (be careful here, but it is easy)
I used a small tip screwdriver to remove the switches attached to the wooden console.
Repeat this process on installation!
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