Hi Guys, Recently the RNS-E is really starting to pee me off, I don't know if mines just ins't installed properly, or this is how it goes on all of them. 1. Satnav will only do a 5 digit post code search, which means you still need to add a street name? 2. When adding files to my SD card, some don't show unless you rename them (Seems to be if they have too many numerals etc) 3. I need to have my Satnav disc in the player all the time for the satnav to work? (i.e. I cant listen to a cd and use satnav at the same time) Really interested to find out if this is common, as I bought a £400 copy for my golf gti, and it did ALL of the above, and played ALL types of music files, not just mp3, plus was touch screen..