I don't know if they will work with your Autocom, but in the ebay sale I looked at it said in the blurb they are GMRS/FRS ie American standard, so be careful what your buying, you want PMR for the UK and Europe, plus I'd be careful of buying anything like that from Asia/Hong kong, they may well be copies anyway.
Well the Cobra's are PMR, so thats a start, but an Autocom cable won't plug straight in to them, you would need an adaptor Maplin Pn:A79FU and an Autocom Icom cable, even then I can't guarantee it will work because so many of these radios have different pin configurations and methods of operating the PTT.
But I can tell you an Alan 456r radio works with the Autocom/Icom radio cable and they cost around £49.99 each