adding DAB to W204 facelift with NTG 4.5

[poyntzj]

I would like to add DAB to my car which has an NTG4.5
However, I am reading about the standard Merc DAB is not too good on the later models due to it being a combined unit so wonder if a 3rd party option maybe better.
If so, any recommendations of model and fitters ?
I am in Surrey / SW London

Cheers

 

[whitenemesis]

Have a word with Comand down the road in Lightwater