Just removed from my 2011 A4 Avant B8. Both head unit and screen in good working condition. Main unit is running upto date firmware and have the 2019 maps installed on an SD card, supplied with the unit, I will also include the original navigation DVD.
£145 posted for both items or can be collected from PO13, Gosport, Hampshire. I also travel quite a bit for work, most weeks I'll be in PO, SO, BH, GU & KT postcode areas at least once a week during normal working hours, so could possibly meet up.
High res photos available if requested.