Before I began, I made the wrong assumption that the current knob would just screw off. This I thought, because every other car I've owned was that way. But I guess these newer cars just have to be difficult. I'll warn you right now, my original knob can no longer be used. It's practically been destroyed.
    First things first is to take off the OEM shift knob. There are two parts to this knob. There is a rubber cover fitted to a plastic knob piece. It is not necessary to remove the rubber cover to take the knob off. It does not unscrew either. All you have to do is twist it until it becomes loose enough to slide off. This is not by any means simple, though. I suggest using a heavy duty wrench with a tight grip. Clamp the wrench on the lower part of the knob. Twist in either direction, or back and forth. Pull upwards while twisting and soon it will pop right off. Afterwards there is just a metal pole with a dual pronged tip. From here on, just follow the instructions that came with the knob you have selected. Mine came with appropriate pieces.

    As far as my struggles, it was a lot more complicated than it should have been. Since I couldn't screw it off, I decided to take off the rubber cover in order to see what the actual knob looked like. In the process, I ended up ripping it to shreds. Then I was left with this ribbed plastic piece that wouldn't move. I got a large wrench and started twisting but it wouldn't move at first, because I couldn't get a good grip on the wrench. So I thought maybe the top portion was some kind of cap and I tried prying that off with a screwdriver. I snapped off much of the plastic in this attempt. I then found a wrench I could get better grip with and clamped it on the lower part of the knob very tightly. I twisted as far as I could rotate the wrench, then back towards me. This I continued while pulling upwards until the knob just shot off on to the floor. Now I was aware of the whole construction of the knob and was ready to attach my new knob.
    The knob unscrewed into two pieces: a beauty ring and the knob; there were five plastic adapters of varying sizes, four tiny screws, four tinier screws, and a hex head screwdriver. First task is to put the beauty ring on to the metal pole, simple. Next is to find the appropriate adapter and place it on to the pole. This required a bit of hammering to go on all the way. Unfortunately, I hammered too hard and the plastic piece broke in half. I had to go to the store and get a new one. Afterwards, I put the knob over the adapter. The knob has three holes on the bottom for the screws to hold it tight against the adapter. I inserted one of the tiny screws to find out it was too long. So I took that out and inserted three of the tinier screws. Then I tried screwing the beauty ring and knob back together, but a couple of the screws were sticking out too far. In the process of tightening the screws I stripped the hex head screwdriver. Finally I got the beauty ring screwed on there and everything is fine.