⚠️ DIGITAL UNLOCK SERVICE ONLY — NO PHYSICAL RADIO RECEIVER SHIPPED

You are purchasing the factory original anti-theft security PIN code to reactivate your existing locked Mercedes-Benz Audio 20 head unit. No physical dash receiver, screen, or cables are mailed.

Mandatory Verification Steps Required Prior to / At Purchase

Due to Mercedes-Benz telematics network architecture, unlock generation cannot proceed until both conditions are submitted via eBay Messaging:

Condition A — Send Exact Unit & Vehicle Details:

Send an eBay message specifying your vehicle model, year (e.g., 2013 Mercedes C250 W204 w/o COMAND), and state whether the screen displays "Anti-Theft Protection Activated. Service Required." or prompts for an input code.

Condition B — Attach Clear Photo of Casing Label:

Remove the central dash trim and upload a sharp picture of the manufacturer identification sticker on the metal receiver housing, clearly showing the Mercedes Part Number (A204 900 xx xx / A204...) and the Hardware Serial Number (typically starting with PA, ME, or AL).

Service Overview & Anti-Theft Reactivation

When an Audio 20 head unit is transplanted into a replacement vehicle or experiences critical CAN-bus battery disconnects, Mercedes anti-theft protection locks the receiver to the donor car's Electronic Ignition Switch (EIS).

  1. Carefully remove the upper air vents and unbolt the dash-mounted receiver.
  2. Locate the factory identification sticker on the top or side metal casing.
  3. Submit purchase and message the label photo through eBay Messages.
  4. Receive your genuine factory anti-theft security PIN directly in your eBay inbox.

Hardware Compatibility Matrix

Vehicle Platform Model Years Supported Audio Systems
Mercedes C-Class (W204 Facelift)
C250, C300, C350, C63 AMG		 2012 – 2015 Dash Mounted Receiver (w/o COMAND)
Audio 20 NTG 4.5 / Single & 6-CD Changer
Mercedes GLK-Class (X204 Facelift) 2013 – 2015 Audio 20 Dash Units (A204 Part Numbers)
Supported OEM Suppliers All Facelift Years Panasonic, Mitsubishi Electric, Continental Audio 20
Excluded Systems Full COMAND Navigation units (NTG 4.5 with integrated SD slot and DVD changer) and pre-facelift pop-up screen units (2008–2011) are NOT covered under this listing.

Anti-Theft PIN Input & Vehicle Pairing Procedure

  • Turn the ignition switch to position II (ON) and let the center display boot up completely.
  • Direct Input Prompt: If the unit displays an on-screen code entry ribbon, key in the supplied PIN using the center console COMAND controller / numeric dash buttons and confirm.
  • Diagnostics / Retrofit Pairing: If the screen is locked displaying "Anti-Theft Protection Activated. Service Required.", input of the retrieved PIN code must be finalized via standard Mercedes-Benz diagnostic software (Xentry / DAS / Vediamo) under Audio 20 > Adaptations > Anti-Theft Protection Teach-In to marry the head unit to the vehicle gateway.

100% Factory Database Match & Money-Back Guarantee

All PINs are generated directly from official Mercedes-Benz OEM telematics database tables using your unit's serial number. In the improbable scenario that a calculated PIN is invalid for an unmodified, operational factory unit, provide a continuous video recording showing the casing serial label and the diagnostic/input sequence for an immediate 100% refund.