here is the walk through for custom wall paper.
You need to download
irfanView and the
converter
here is the converter website if link doesn't work.
http://www.xoned.net/content/xoned/projects/ida-x001-apn-converter
To obtain a working RAW image you can freely use IrfanView with this plugin pack:
http://irfanview.tuwien.ac.at/plugins/irfanview_plugins_400_setup.exe
step 1) Just open your preferred image in irfanview, then use Image->Resize/Resample to set the image to 320x240 72 dpi.
Finally save your image as a RAW in the location: c:\tools\x100\, choosing RGB Interleaved in the dialog box, without using Flip Image.
step 2)
Converter:
1) extract exe and dll in c:\tools\x100\
2) convert your image in RAW and put it in c:\tools\x100\ ----this is what the 1st step was about.
3) click Start->Run and type "cmd.exe" (without quotes)
4) in the cmd prompt type "cd c:\tools\x001\" (without quotes)
5) now type "xndconverter.exe myfile.raw" (without quotes)
If no error occurs your converted apn file should be ready in c:\tools\x100\.
The only way I could get the alpine deck to see the files is to use a usb memory stick. It would NOT work using the ipod to download the wallpaper. I would test whatever usb memory stick by downloading some alpine wallpaper and putting them on the head unit.
If you run into any problems please PM or if you would like I don't mind doing a couple for you if you can't get it working.