Basically I'd like to retain as much of the factory functionality as possible and add the ability to listen to/ control an Ipod, and be able to play DVD or media through the sat nav screen. I've seen a fair few devices which claim to be able to interface with the video by sitting on the connection between the nav and screen and then using a switch to alternate between the two. After reading up on the video device I found that it has no way for audio and relies on an AUX or FM modulator. I then did tons of research on the AUX (including forum threads here where manual connections have been made and factory devices or aftermarket adaptors or even CD changer connections) and as a result I cant find a way to acheive it on this head unit, it doesnt even have a standard antenna connection! and the pin outs dont seem to match any others that I've seen on forums or diagrams
Ok so here are the details on the car, I have a 2006 (mid through the year) Pathfinder Aventura Right hand drive (UK - Europe). It has 6 disk CD changer, steering wheel control, Sat nav and Screen, Bluetooth handsfree etc see image below...

As you can see from the image below the unit is a clarion (not the bose as I expected....

Another thing I note... The stereo unit has no Sat/ Radio options, no rear AV or AUX as other users have described...

The Steering wheel control has no "mode" option but has "voice control" and "source" instead.

The image below shows the rear of my stereo unit. This unit is mounted behind the CD slot and has cables to the front panel controls etc. It should be noted that it seems the changer and HU are all the same unit with no external connections

This image shows the main connector (largest to the back of the HU)

This is the Sat NAV DVD located under the (right hand side) drivers seat...

This is the rear of the Nav DVD

This is from the USA quick reference guide and shows the buttons on the cars there which are totally different from the UK ones.

So based on this info I have the following questions...
1) does anyone here have this stereo with this stereo configuration and if so were you able to obtian an AUX or ipod control?
2) although my stereo is different to the Bose ones, does anyone know if the DVD player unit is the same? (so I can decided weather to buy the video out)
3) Can anyone recomend a location for diagrams/ pinouts for this stereo
4) can anyone identify this stereo or put me straight about the differences in European or USA stereo models?
Ideally
1) I'd like to get an IPOD cd control input to provide sound and be able to use control through the stereo
2) Fit a switch and be able to change to a DVD/ external video source through the main screen and have the sound delivered through the aux
3) not loose the ability to flick a switch and get all standard functions
4) avoid FM modulators unless directly cabled
Any help would be really appreciated... I've spent 2 weeks searching and going round in circles!!