I agree, but most of the aftermarket units are easily identified by thieves and removed from the vehicle easily, as they are double DIN they pretty much just slide in and out, please correct me if this isn't the case. The OEM unit doesn't stick out like a sore thumb, is very hard to remove from the vehicle quickly and would be difficult to sell on unless you really knew what you doing in order to re-code it.
This RNS 510 really is good and the maps are now 3D, a huge improvement on the old MFD2 and there is now TMC support, its very easy to use and has a very clear layout and the hard disc is brilliant.
