De badge is a diy job - warm up the glue with hairdryier and then use something like dental tape or fishing line in a sawing motion under the numbers - carefully!
Soon have it off and then just clean up any residual glue.
Not sure about the DAB unit - I specced this and would say its a great option if you can get it retrofitted - sounds fantastic (especially with Logic 7 System)
E90 335i Msport
Mini Cooper S Sold: Z4 3.0si sport ordered!
R1150 GS - for sale