Help with wiring new head unit

Here is a picture of the back of the unit as well as the remaining wires for the deck side. I already attached the SWC wire, yellow power wire, and black ground wire. On the back of the unit the two outside red and white inputs read, front/rear & L/R line out? so can i just throw the RCAs of the speakers on those, than the amp RCA (i hope the amp has an RCA on it i didnt run the amp so not 100% sure) part that says sub out?

These are the wires from the harness that are left. I have the four RCAs for the speakers which im guessing i can plug right into the unit now. but for the remaining i have 8 wires and only 5 from the units wires.
1) orange w/ white matches up for illumination
but other than that none match up directly
On the unit i have
1) dark blue wire labeled power antenna
2) dark blue w/ white wire labeled "please connect to remote for amp, equalizer and/or auto antenna (.2A max)
3) Orange w/ white
4) Brown
5) Red wire slightly longer than the others.
On the Harness i have a cheat sheet for.
1) Red/white - P.B. Output (-)
2) Purple/white - VSS output
3) Blue/White - amp turn on input
4) red - acc output(1amp)
5) orange/white - illum
6) green - reverse output(+)
7) blue - antenna on input
8) mystery orange wire

Got the new HU installed the other night. Looks really good, and deff increases the clarity & power of subs and speakers. Only issue I had when mounting the HU was. 1) not a ton of room to put wires behind the unit. There's a small hole in the plastic behind the original unit put you kinda have to fish the wires inthere to get them all to fit properly. This process was further complicated by the second issue. 2) was the fact that the HU wouldn't slide through the opening for the new mounting bracket. Therefore I had to mount the HU into the bracket before trying to put the bracket into the opening for the HU. Also because the HU couldn't slide through the mount the trim piece wouldn't fit on. BUT in the end I got everything put back together and it looks pretty flawless on the outside. Ill post up some picks later. FYI:Instead of running the inputs into the glove box, I ran the cord right up to the steering wheel, and had it come out by the shifter. Its perfect because my method of choice for music is buying a 16G flash drive for < $20. it can store more music than a $300 ipod and if you sent up folders, easier to search through. Also I can hookup my flash drive, and just let it dangle there without having to worry about it falling out, and can easily take it out to update.