Thanks for the note. I'm pretty sure that the J1939 is the right one. I'm trying to use a HUD to show some data on the wind shield as I drive. Exactly what isn't really all that important, I guess, I'm just trying stuff. The kit I got has the ability to display some GPS data, but probably nothing useful. The GPS input module is expensive, and not on my list for now.
As I said, I'm just messing with stuff. When the adapter for the J1939 gets in, I can try some more stuff.
Tom & Jan ---- Westwing43
2005 NEWMAR KSDP 3910 NOW PULLING A 2014 CHEVY CAPTIVA