I wish I could give you the best opinion. I don’t know anything about the Teslas layout or how it’s oriented. If you can get away with using an MFGC id go that route.
But without knowing anything I’d say the extender pro. Mixing the large and small implant one would be best.
I hesitate because I don’t know where you’d put them. How it would be mounted and where you would extend it to. You’ll have to be the best judge of that.
Unfortunately no. Depending on how the apartment complex uses the memory in your 4k classic chip, it might be possible to clone the ID and first 1k of memory to an xMagic or xM1 and have it work. Can you scan the memory of the chip in your keycard with taginfo and post the full scan here? If all the latter memory blocks are basically factory untouched with default keys, then there might be a chance it can be copied and used with your apartment complex.
Ok I was able to scan it to my Flipper Zero and can use that as a key now. I haven’t been able to get a read with my phone and NFC TagInfo though. Is there a way I can paste the flipper data here?
Lets try this first
Using your Flipper, emulate your key, and read THAT with TagInfo on your phone
then
That won’t work for me for some reason.
Are you using iPhone? If so, find an android phone to run taginfo on 