Tag Archives: radio

Upgrading 2nd generation radios (RCD 300, RCD 500) to 3rd generation (RCD 210, RCD 310, RNS 310, RNS 510, RCD 510) antenna adapter

3rd generation connection
3rd generation connection

Upgrading from a 2nd generation radio (RCD 300, RCD 500) to a 3rd generation (RCD 210, RCD 310, RNS 310, RNS 510, RCD 510) requires an antenna/aerial adapter to be fitted. The 2nd generation radios had two seperate connectors for the antenna/aerial connections whereas the 3rd generation still have the two antenna/aerial but in the one connector. As many of the 2nd generation had swivel antenna/aerial connectors replacing the fakra housing is not possible and an adapter is required.

Most recent Volkswagens including the Golf 5, Golf 6, Passat, EOS, Jetta, Polo, Touareg and so on have a diversity antenna system and twin tuners hence the two antenna/aerial connections, leaving one disconnected will affect the performance of the radio system and throw errors in the radio/navigation system.

The 2nd generation antenna/aerial connectors look like this (MY07.5 and later), earlier aerial connectors (MY07.5 and earlier) had a straight through lead from the rear and can use the cheaper solution.


Solution 1 – Suits all (both straight and right angle swivel)

Volkswagen have an adapter available that resolves this problem.


Partnumber is 7L6 051 551 (7L6051551) and this is available for around AUD$50, GBP£25 and USD$30 from any Volkswagen spare parts department.

Solution 2 – Suits straight only

If you have the non swivel antenna/aerial connectors you can purchase just the fakra connector that attaches to the back of the headunit and replace the existing two connectors with the new one (only one connector inserted in photo).

The part number is 4E0 035 608 K (4E0035608K) and it is available for around AUD$10, GBP£5 and USD$7 from any Volkswagen spare parts department.


Option 1 – Build an adapter from parts (suits both straight and right angle swivel)

You require the following parts

  • 4E0035608K (4E0 035 608K) x 1 – Connector for the rear of the headunit
  • 000 098 707 (000 098 707) x 2 – Cable to connect to the antenna/aerial connection from car

Option 2 – Purchase an alternative adapter (suits both straight and right angle swivel)

Kufatec sell a similar adapter for EUR€24.99 but shipping is expensive.


Option 3 – Remove the plastic housing (suits both straight and right angle swivel)

Remove the plastic surround around the antenna/aerial connectors using side cutters and push the connectors into the sockets on the headunit, there are a few problems with this method however and these include the connectors can fall out as there is nothing to hold them back other than the connector friction and the connector becomes loose over time. (right angle swivel shown)