I won't be buying another one, I'm very happy slumming it in my Romanian Roller!
I am told the Abarths are stolen via the OBD port, they hack in with some software and start them up without the need for the key.
I have seen OBD port relocation kits so it can be moved and hidden away, locks to shield the port it's self and dummy ports to fool the dirty feckers, these seems the stock aftermarket security device for other scumbag favourites like the Fiesta/Focus ST.
From the Abarth forums, it does seem like the Elite Pro fits over the steering wheel boss/airbag.
I see you only plan on keeping it a few months, I do hope you manage that long!
I hear from a local ex scumbag, who had their Abarth stolen shortly after mine went, there's a gang in South London targeting Abarths, ST's, GTi's and the likes, they appear to be operating sarf of the river and as far as Maidstone.
I was told where they park them up for a while in case they are fitted with trackers, I had a look recently in that area as it's not far from me and there does seem to be few ST's, GTi's and the likes dotted around an industrial estate and it's side roads, they don't seem to move for a week or so, then disappear.