Speaker trims pop out, just get a small flathead screwdriver and with a rag (to protect the plastic) gently prize around and it'll pop off.
For the centre console its easiest if you remove the radio first (you don't have too). Then just pull it towards you, needs quite a tug. The start button and hazard button just unclips and these parts can be easily removed once you have the console free.
For the gear gaitor, first remove the knob which just needs brute force upwards. You'll then see a rubber ring holding the material on, move this so that the inner plastic thingy can be removed. You can then prize the plastic trim up carefully.