You should really read the RNS-E DVD Navigation Plus Quick Links, all your questions and more are answered there.
It takes about 15-30 minutes if you get the radio out and GPS installed without issues. My first install took me an hour but I have removed and reinstalled the RNS-E so many times by now that it barely takes more than 2 minutes to swap the units (leaves 13 minutes to install the GPS antenna and enter the code :lol: ). It doesn't matter if it's Bose or not (this is a VAG-COM setting) but you have to get the right adapter. It's plug and play in a B6, the only real wire is the one from the GPS antenna.
It takes about 15-30 minutes if you get the radio out and GPS installed without issues. My first install took me an hour but I have removed and reinstalled the RNS-E so many times by now that it barely takes more than 2 minutes to swap the units (leaves 13 minutes to install the GPS antenna and enter the code :lol: ). It doesn't matter if it's Bose or not (this is a VAG-COM setting) but you have to get the right adapter. It's plug and play in a B6, the only real wire is the one from the GPS antenna.