New Double Din radio installation

[curtisdavis1983]

I have a Pioneer AVH 8400BH that i am about to install in my 1998 S70 GLT. However, I didn't get a installation kit for it. I haven't seen any where that I would need one and for the most part, all i have seen said is that once I removed the rails along the side, the radio should fit right in. I can see that it should slide right in but my concern is as to whether it will slide back into the slot to far or out the slot all together upon pulling off from a stop. Also does anyone know what color is the wire for the parking break power supply because I have a wire that is suppose to attach to it (for a reason unknown to me).