hey darth
thanks for the super prompt reply and the good idea. I got it working at once with the CD changer thing. I don't actualy have a CD changer, but I do have a soundlinx adaptor that uses the ibus to emulate a cd changer to allow an RCA AUX input. So allowing the adaptor to do the cd emulation, and ibuscomm to do the amp emulation worked a treat....
however...
the track names are now displayed for a fraction of a second, before the adaptor takes over and displays "CD 01-" or similar. I would acutally like to remove the ibus capability of that adaptor and just let it do the aux input (it balances the input so I'm keeping it for that). I would rather the ibus is completely managed by the computer as it's more flexibility.
the msg template is
[ID:AMP_EMULATE]
MsgTemplate="C0036801AA"
Label="AMP Emulation"
If you could put in a timer subrouting I would love you forever!
about the display... have you tried to animate it? like scroll the title in or simliar. some track names are a tad too long and are truncated. it would be nice if it scrolled them. I'm actually a programmer and can do this if I'm to learn a bit about VB (I plan to at some point... but then I've planned to for a couple of years now

). It would be super cool to have it also say:
"Camera in 50m"
...
"Camera in 40m"
...
"Camera in 30m"
I'm sure the GPS SDK guys can help out with this. the lon/lat can be retreived via the ibus.