Hello, Just bought a Z2. I have found the Wiring harness I need but had some questions on the other wiring. Do I need to hook in the parking brake wire? I don't want to pull over every time to type in a address or watch a movie. Is the "VSS" wire get connected to the Z2's labeled speed wire? if this is the case does anyone know where I would find this wire in my car? I have done installs my self in the past but never with a navi. these wires are kind of foreign to me. Also I Have factory steering controls that I would like to keep, and intend on using the PAC-AUDIO SWI-PS but have no idea how to do this. Any help with this would be great would like to get fully functional this weekend.