i just did a Fiat Ducato Pickup with 8 leg 3 button marelli remote, precoded and programmed perfect with lonsdor just changed the shell to a 2 button one, because it doesnt have backdoor to open. But yes you need to watch which remote you use Delphi or Marelli. when you either look at the BCM or open original remote you can tell instantly which 1 you need. The producername of the original remote is on the PCB. so you almost never can go wrong. you can get something like Multiecuscan for fiat so you can see what BCM you are dealing with.

I receive my order and registered happiness
Hyundai I30, year 2011, 1,6 CRDI read PIN ok (pcf 7936), add remote key OK (spare key)
LOGAN, 2006 add remote key OK, pcf 7946