2003 Freelander Head Unit Replacement

[WorldFormula]

Hey I'm installing a new sound system into my 03 freelander. I just got four 6.5" Alpine speakers in, and now I'm trying to install my head unit. I've identified the 8 speaker wires, but the other 6 i'm having trouble with. These are the colors:

Black/White
Purple
Purple/Black
Red/Orange
Black(thicker wire)
Green/Black

And if you could match these up - This is what it has in my new head units manual:

Memory
Connect to a battery circuit or a constant 12v source.

Accessory
Connect to existing ignition circuit or switched 12v source.

Ground
Connect to vehicle chassis ground.

Remote Turn-on
Connect to amplifier or power antenna. (This probably isn't used)

I've got amp wires too, but I don't think this model has one. I'm not new to electronics, I actually work on and repair xbox 360s. I've never touched a car system before though. Any help would be great.