Hi

Just done this on my 'S' spec 2005 TDi

There were no speakers or wiring for rear speakers which is why i gather (from other forums) there is no fade option (apparently it appears when you connect rear speakers)



I had some speakers (17" 2-way pioneers) and wiring installed for me as it didn't have time to do it myself.



I then installed a facia adapter to convert to single din (**tip** you get what you pay for - my £8 ebay item wasn't the best looking/fit)

Below links help with removing:

http://uk-mkivs.net/forums/p/18010/170840.aspx#170840

http://www.golfmkv.com/forums/showthread.php?t=693



From there I then purchased a converter for the can-bus wiring and fakra to standard aerial (with signal booster which is required for mw/lw)



After this the only other issue is because the can-bus wiring there is no switched live so i ran a wire behind the steering column to the fuse box wired in an in-line fuse and then used a simple blade connector to slot into a free fuse way which i found to be a switched live.



There may be more expensive can-bus converters which actually do the switched live for you a bit like what is required for people who tow and have a car with can-bus rear light clusters. Someone else might have more info on this as i am unsure.



Once i had correct wiring i just slid in my sony mp3/bluetooth stereo.



If only VW weren't so tight with rear speakers and used standard wiring eh! - 5 min/£10 job turned into a marathon £160 job



Hope this helps