Upgrading 2nd generation headunits (as fitted to the Golf Mark V and similar models MY05-MY09) to a 3rd generation headunit has a number of additional requirements depending on the year.
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
If installing a RNS 510 with a software version more recent than 1200 or any other 3rd generation head unit the CAN Bus gateway needs to be revision L or greater. The gateway version can be identified by checking with VCDS or physically checking the gateway.
Replacement of the gateway – CAN bus gateway removing, installing and upgrading – Volkswagen Golf
The 3rd generation head units require both aerial connections to share the same housing, the 2nd generation aerial connections are separate connections. Depending upon the year there are two options available ranging from AUD$10 to AUD$40 to resolve this problem.
Remove the old head unit
Remove the dash vent (or tray on non Climatronic units) by following this guide.
Remove the trim around the head unit using this guide.
Remove the head unit 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.
Install the GPS antenna
CD Changer and Aux In wiring change
CD changer ground
Auxiliary input ground
Install the new head unit
Attach the cables to the rear of the head unit, slide the unit back in and secure with the 4 screws removed earlier.
Replace the trim around the head unit using this guide.
Replace the dash vent (or tray on non Climatronic units) by following this guide.
Code the RNS 510
If you have a factory amplifier you will need to change the units output.