It all depends on what you want to do. You will need a euro antenna adapter. If you want to use the factory amps that is one harness, and if you want to add your own amps you will just use a 2007+ harness for the ground, Battery constant only. The Ignition wire will have to be run to the fuseblock or tapped off the Lighter for the exit delay to work. If you want steering wheel controls to work, you will have to get a head unit that supports the peripheral harness or whomever makes a steering wheel module. Some head units have a specific plug in for them....Pioneer being one of them.
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