Hello !
After my first NFC chip on my right hand i want continue pimping by a chip for remplace my car key. I have a Grand Cherokee 2016 with FOB system ( keyless ) and i need to now if its possible to remplace that maybe with a XEM RFID Tag [T5577 Emulator] ?
My garage is open to make test so let’s go
Thanks you very much
Niko
So there are a few other posts on this forum about key replacements… definitely check those out first.
To confirm, did you get the xNT or xEM or another chip elsewhere?
No no my xNT come from here 
Order #9496
xNT NFC Tag [NTAG216]
$99.00
Ok, well if you want to use the xEM chip with the xEM Access Controller, then you could probably build something, but it would require totally destroying one of your “keys”.
This thread kind of covers the idea; 2013 Hyundai Sonata