Partnumbers for the kit include

• 1Z0 035 729 (1Z0035729) – Interface Unit (older models don’t support the RNS 510)
• 8P0 035 503 E (8P0035503 E) – Bluetooth Antenna
• 3B0 035 711 B (3B0035711 B) – Microphone
• 1Z0 971 813 62U (1Z0971813 62U – Covering Black or
• 1Z0 971 813 3AU (1Z0971813 3AU) – Covering Ivory
• N90 946 001 (N90946001) – Expanding Nut x2
• N90 817 003 (N90817003) – Torx Screw x2
• 6U0 819 055 (6U0819055) – Clip x2
• Wiring loom – Strongly recommend a full plug and play unit

Bluetooth unit prior to installation. The 1Z0035729B as shown is compatible with the RNS 510.

Tools required for the install include

• Trim removal tools
• 10mm socket or spanner
• Selection of flat and torx screwdrivers
• Sharp hobby knife
• VCDS from Ross-Tech to code the unit
• Fabric Adhesive Tape for wiring looms and harnesses

Wiring Harness

There are a few options here to connect the bluetooth unit to the factory harness behind the headunit.

• purchase a fully built plug and play harness
• build an inline adapter and connect to the harness that comes with the kit so you have a plug and play harness as above
• use connector housings and repair wires to plug inline with the factory headunit harness
• cut and splice (not recommended)

Plug n Play Harness

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A problem with the Plug n Play harnesses is that they don’t have compliant CAN bus cabling which has to have a twist maintained throughout. The solution is to replace it with CAN bus repair wire – Performing repairs on CAN bus wiring

Inline Adapter

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Connector housing and repair wires

This process involves joining the connectors to the harness and doesn’t involve adding bulky adaptors or cutting the harness.

• 1 x 000 979 133 (000979133) – 1mm repair wire – CAN bus Hi and Lo female.
• 1 x 000 979 134 (000979134) – 1mm repair wire – CAN bus Hi and Lo male.
• 1 x 000 979 225 (000979225) – 2.5mm repair wire – 12v and ground female.
• 1 x 000 979 226 (000979226) – 2.5mm repair wire – 12v and ground male.
• 4 x 191 972 701 (191972701) – Housing
• 4 x 191 972 711 (191972711) – Connector Housing

Build harness using connector housings and repair wires for Volkswagen Skoda Bluetooth Install

Splice

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Bluetooth Interface Unit

Remove the two carpet squares that are premarked under the drivers seat using a small knife, don’t cut too deeply or you will cut into the paint on the sheet metal underneath. Insert the two plastic plugs and screw the bracket into place. Note that the bluetooth unit in this photo is upside down. Before you slide the unit in bend the metal bracket inwards so that it holds the unit tightly to prevent rattles.

Next remove the sill panel trim on the right hand side of the car, this only has to be removed for the front door and requires the clips to be removed so the edge of the carpet can be accessed.

Volkswagen Golf Sill Panel Trims – Removal and Installation

The next step required the installation of the microphone.

Volkswagen Skoda Bluetooth Car Kit Microphone Install in Volkswagen Golf

Remove the dash vent (or tray on non Climatronic units) by following this guide.

Volkswagen Golf Dash Panel Centre Vents – Removal and Installation

Remove the trim around the head unit using this guide.

Volkswagen Golf Centre Dash Panel Trim – Removal and Installation

Remove the headunit by unscrewing the 4 screws and carefully sliding it out, watch out when the unit is released as it could drop and scratch the climatronic.

Release the cables from the rear of the headunit and put the headunit aside safely.

The unit that I installed came from the UK, contact the owner of this site to purchase a kit.

Another installation guide is available from his website.