Mark 1A/Phase 1.5 (2000–2004)

Early models (2000-2004) may use an ISO plug. The easiest way to confirm is to remove the factory radio and physically check. Later vehicles use a Quadlock connector.

No fascia is required to fit an aftermarket radio. A pocket is required to install a single DIN radio.

Mark 1B/Phase 1.75 (2004–2010)

The car audio plugs have changed to 40 pin Quadlock and fakra for the radio antenna connection.