I'd be very cautious / hesitant about messing with the front VW badge on the MK8 tbh! As we know too well on these forums, these cars are hypersensitive to the most minor glitch in its multitude of sensors, so I think you're taking a big risk of getting into bing-bong hell for the sake of an illuminated badge.
For example... my Dad's Tiguan was driving him crazy for months, steering wheel replaced twice, dealers had his car for weeks at a time. Eventually they disassembled the front VW badge and found it was full of spider webs! Cleaned it out and finally the errors cleared. Also, 2 friends of mine with MK8 GTI's have had to get parking sensors replaced on front bumpers - allegedly these sensors will throw errors if they get the slightest damage (e.g. from a stone chip).