JVC do a no screen DVD player with ipod/bluetooth/stacker options. it is a KD-DV5506.
Not a bad unit, but it is very slow to read things such as CD/DVD/ipod. Also with the ipod control it loads the pics in the mp3 file which takes 3-5seconds. Problem is that you cant change tracks within this time. You'll also see in the below pics that is has USB and AV line in. JVC do a ipod/iphone cable for USB/AV in, i don't have the part number for that though.
I'll be modding mine to do USB and line in from the rear with an iphone dock as I hate cables in the cabin.
Also to add, you'll need to get the bluetooth/handsfree kit to intergrate phone calls. You'll need the JVC adaptor KS-BTA200.