![Mercedes audio 20 manual w203](https://kumkoniak.com/67.jpg)
All cables from old radio connected-no one left unattached. For new radio I used new antenna plugs- compatible with this unit. I have no idea what to do! Old radio had 2 antenna plugs, so was no any trouble to connect to new Audio20. For a moment everything was looking fine, after cluster activation- no any trouble, but really only because I mostly play music from CD –took me a while to I discover that I have only FM with probably not very strong signal- sometimes a station vanish completely and return after a while, and I don’t have ANY station on LW, MW, SW. Press the Forward button once to select Track 2. CD5 and Track 1 will be highlighted on the display. This will activate Bluetooth audio mode 5. Now press and hold Forward for 3-4 seconds. I upgraded my standard Audio 20 (car was no prewired) to new Audio 20 with Bluetooth and MP3 player. Press the CDC button on your Audio 20 system to activate CD changer mode 2. Thanks again for advice how and where can be activated additional features - Comand Online did all without delay!!, but something else – another thing to do appear and I hope you know how to solve my problem.
![Mercedes audio 20 manual w203](https://kumkoniak.com/67.jpg)