Well I finally built up enough courage to tackle this today. All in all it took me about 3 and a half hours, but that included some hoovering and cleaning.
The biggest problem I had - oddly enough - was the cover at the back of the console. I couldn't get it removed for love nor money.. took me probably 20 minutes and various trim tools (which were useless) before I got it off, and I cut my finger in the process. The metal clips on that thing are far too unforgiving for such a simple piece of trim in my opinion.
Because TESBROS didn't disconnect the 12v/HV in their install video, I thought I'd do the same. I removed all 6 bolts on the console, powered down the car, waited until it clunked and verified that it was asleep with TeslaMate, then removed the USB and CANBUS connector. I did make the mistake of not raising the seats up, which made it difficult to remove the two at the back, but everything else went smooth enough.
Unfortunately for me, when I unplugged the CANBUS my automatic boot opened (it's plugged in there to monitor state), which woke the car up. Disaster! The screen didn't come on, but the familiar HV clunk was heard.
At this point I just carried on because the console was already disconnected. I ended up pulling the console back and up from the back seat (I confirmed that lying on the back seat didn't wake the car up, like sitting in the drivers seat (and passenger?) does. This was quite a tricky thing to do solo, as was maneuvering the new console over the top of the seats from the back. It slid into place easily enough though. While I was doing all of this I heard the car clunk again to go back to sleep.
Since I knew plugging in the CANBUS would wake the car up again, I decided to plug in the USB cable first. This didn't wake the car. Plugging in the CANBUS made the boot open again, and woke the car up (again nothing on the screen). I tested all of the functionality (forgot to test the USB-C ports IN the console for data, but I'm confident it'll be there since my console came from an August 2021 car), which all worked.
Not powering the car down properly did cost me though, as now the car is complaining about low tyre pressures on all 4 tyres. Looking at the pressures on the screen in the car showed them to be normal, so I'm hoping this will clear itself after a sleep.
Since I didn't switch the security controller all of my keys were wiped and I can't drive the car. I knew this going in though - I didn't want to strip down the 2.0 console because it was in mint condition and I didn't trust myself not to break something. Mobile service appointment booked to get the new security controller paired, which I imagine will be a paid job rather than warranty.
EDIT: Tesla want £170 (~$205) to pair the security controller - ouch! Kinda wish I'd taken it apart now!
