Amazon.com: Latest Version Navigation SD Card Compatible with Mercedes CLA/GLC/GLA/AMG/A/B/C/E-Class, Version 14.0 (MAP 14.0) ONLY Fit for The Audio 20 (Code 522) NTG, Can/Mex/USA Maps-A2189068403 : Electronics
Remove & Replacing Audio 20 Display from X156 GLA-Class 2014 - onwards - with 8" OEM Grade Monitor. - YouTube
Mercedes Radio Audio 20 NTG5 mit Monitor Navigation CD A2469006615 GLA X156 W156 | eBay