Need Help: Wiring head unit in 1995 4runner

[cnoxin1234]

I recently bought a new head unit Pioneer DEH-P5900IB and a wire harness to go with it. I need help installing the head unit in my 1995 4runner. I am not experienced with car audio installation so this should be a breeze for you guys.

The factory wiring has two wire harnesses coming from it, one has 8 wires the other has 4 wires.

8 wires:
(color - what the wires say on them)

Reddish orange - 12v ignition/acc
Blue - power antenna
Black - ground
Yellow - 12v batt/memory
White - LF(+)
White w/stripe - LF(-)
gray - RF(+)
gray w/stripe - RF(-)

4 wires:

Violet - RR(+)
Violet w/stripe - RR(-)
Green - LR(+)
Green w/stripe - LR(-)

I am going to solder these wire harnesses to the new harness that I bought with my Pioneer DEH-P5900IB
however the new harness has 14 wires

14 wire harness
(color - what the wire says on it)

Red - 12 Volt
Yellow - Memory
Black - Ground
Blue - Power Antenna
Brown - Mute
Orange - Illumination
Gray - RF(+)
Gray w/stripe - RF(-)
White - LF (+)
White w/stripe - (LF-)
Violet - RR(+)
Violet w/stripe - RR(-)
Green - LR(+)
Green w/stripe - LR(-)

The ground/power antenna/ speaker wiring are pretty straight forward but I am confused about the rest.
*Which wire on the old harnesses go to which wire on the new harnesses?
*What do I do with the two extra wires (orange and brown) on the new harness?
*Does this mean that the receiver will not be able to illuminate and/or the mute function won't work?
*Do I need a new harness (This is a last resort because I am broke :& )

Thanks For all your help Guys and Gals. Any help is appreciated.