But... If you are fitting an aftermarket stereo you don't strictly need high-line, it doesn't really offer as much as people say, a bigger diagram of the car when a doors option, and some features like setting the timing for how long lights stay on after car locks etc, which can all be done via VCDS.
In my opinion;
If you are keeping the standard radio, or upgrading to a RNS500 etc, installing bluetooth, hi-line definately worth it.
If you are planning on using an aftermarket stereo/bluetooh, then hi-line is not essential.
What IS essential, is a multifunction steering wheel!
