1995 BMW 325i Ignition Wiring

Lock cylinder went out, and I am trying to wire it up to some toggle switches for the power and a push button for the ignition start. So far I can't find what all the wires are for. I'll list what I have been able to find out, any corrections or more information on the other wires would be greatly appreciated. Also any 'need to know' things I might need to know about before I start this would be great.

Battery Constant 12v- Red or Red + White
Starter Positive- Black or Black + Yellow
Ignition Positive- Green
2nd Ignition Positive (accessory)- Purple or Purple + White

The wires I don't know about are:

Brown- Ground maybe?
Blue w/ a white stripe-
Green w/ a white stripe-

So here is what I have and what I know

Red- Battery
Black with yellow stripe- Starter Positive
Green- Ignition Positive
Purple- 2nd Ignition Positive (accessory)

Blue with White Stripe-
Green with White Stripe-
Brown-

Basically a complete do it yourself guide would be perfect, not sure how many I need but I have 3 toggle switches ready to be installed, I want the switches to control the power/accessories, and I have a push button to control the ignition.