Hi Ant, I have a Road Angel 2 which is in my 182,i found that the only way i could get it to work was with the extension aerial.Road Angel themselves told me that with the screen having the uv film in it this would be the only way. I got the 5m one from them priced at about £20 - £25 and posistiond it at the bottom of the rear off side side window,running the wire under the kick panel.The laser detector part will work if you position the unit so it looks through the square un-coated part of the screen. (bottom centre) somewhere on here there is a thread of someone positioning the unit by the side of the rear parcel shelf.