In the second pic, to the left of the gold plunger is a reverse torx screw. Harbor Freight may have sockets that fit. I used an ignition wrench and needle nose pliers but it would have been much easier with a socket.
That screw also hold the black box on.
I suppose you could gently cut the white tab off and leave the screw alone. You will want a similar size washer to replace the white tab but not absolutely needed, it is just that the screw doesn't tighten down all the way, or doesn't seem to without it.
That is the only fastener that holds the white piece. Wiggle the white assy kinda to the front and up and it comes out. Actually, push the plunger first or even hold the plunger in as it may make removal easier.
If you want to take the upper steering plastic off you will want a very small socket and there are two or three of those reverse torx screws you access from the bottom.
To get the plastic off my 2002, I had to remove the tilt knob. With two hands I pulled straight toward the window side and the knob came out. It is all plastic and is pushed into a black plastic piece. Was easy once I did it. Pondered that one for a while before tugging on it because didn't want to break it.