I have try searching on google, but have no luck with it. Can anyone tell me what the difference is between these units?

I have AVH 6800DVD, is the 88DVD the best option for it?

I have try searching on google, but have no luck with it. Can anyone tell me what the difference is between these units?

 

I have AVH 6800DVD, is the 88DVD the best option for it?

Mostly software and the cable that the unit originally shipped with. The 9x units can also play DVD video while the 8x units cannot. As long as you have the right cable to connect to your system they can all run the same latest software and the 9x can give you another video source.

Thanks. Really appreciated.