Help: Looking for recommendations on which Pioneer Head Unit to buy

I've been reading up on the details/reviews and I can't seem to decide which ones I want to buy. I have a '13 double cab tacoma. My choices are any of the AVH series due to the discount I'm able to receive. I also really like the option of mirroring the iPhone onto the screen, is it the Carplay or Appradio option that does htis? Thank you ahead of time for all of the help!

My current sound setup is:

Stock Head Unit ('13 Touch Screen Non-Entune)
JL Audio Front C2-650
JL Audio Rear C2-650X
(2) Kicker CVR10.4
Cadence D100.4 for speakers
Cadence D1600M for subs

 

Well IMO the only option was the nex4000 cuz ill have navigation with Carplay (4000 doesnt have nav), and didnt find it necessary to pay for one with built in Nav.. I may regret that choice when im road tripping out west with no phone service though... but i still feel like it was the right choice. You get a bigger screen (7 inch vs 6.1 on the nex 6000) unless you get a real high end one thats like $1000 or something, then you get the big screen and Nav. .

Loving my my nex4000 so far. There are lotsa things they could do better, but i believe all systems these days have their flaws somewhere.