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Genuine OEM & performance parts — ships to United States

Product overview

Genuine OEM Audi Antenna Amplifier, part number 4K0035225B. This electronic module is designed to strengthen radio and communication signals, ensuring clear and reliable reception for the vehicle's audio and infotainment systems. It is typically located on the left front side of the vehicle's roof assembly. The amplifier is a compact unit, weighing approximately 0.063 kg and measuring 0.12m in length. Using a genuine OEM amplifier ensures correct signal processing and compatibility with the vehicle's complex electrical architecture, preventing interference and maintaining factory performance.

Catalogue entry: AMPLIFIER left lower.

Technical details

Category
Audio & Infotainment
Customs (HS) code
85437030
Manufacturer
Audi
Product Type
Genuine new auto parts
Shipping size (L × W × H)
12 × 2 × 2.7 cm
Shipping weight
0.06 kg

Specifications

As recorded in the manufacturer’s parts catalogue for this part number.

Equipment codes

  • ER1
  • ER2
  • ER3
  • ER4
  • ER6
  • ER8
  • EZ1
  • EZ3
  • QU1
  • QV1
  • 4KC
  • Q0A
  • Q0B
  • VW8

PR codes identify the factory option a part belongs to; your vehicle’s are listed on the data sticker in the boot well or service booklet.

Why buy from WW Spares?

  • ✓ Genuine OEM inventory sourced directly from factory networks
  • ✓ Fitment support from workshop-seasoned parts specialists
  • ✓ Global logistics with customs-ready documentation

Need help confirming compatibility? Talk to a specialist

Parts diagram & fitment

6 vehicles

Aerial Amplifier — locate 4K0035225B Audi Antenna Amplifier | Left Front in the official exploded view and explore the surrounding assembly.

Parts in this assembly46
Vehicle fitment table6

Europe (6)

VehicleYearsPos.QtyRemarkPR
Audi RS6 Avant2019-2
Audi RS7 Sportback2019-2
audi a6 2.02018-2
Audi A7 Sportback2018-2
Audi Q8 e-tron2018-202021
Audi A8L2017-202231PR:ER1

Diagrams & fitment data powered by oemdiagrams.com

4K0035225B Audi Antenna Amplifier | Left Front is fitted on: Audi RS6 Avant 2019-; Audi RS7 Sportback 2019-; audi a6 2.0 2018-; Audi A7 Sportback 2018-; Audi Q8 e-tron 2018-2020; Audi A8L 2017-2022.