Oh I forgot to say I have the 8.4 w/ nav. What do you haveNot sure what you mean by "eg" settings but, mine works on everything.
And you get surround sound with xm radioSame, 8.4 with Alpine system.
I just checked it and you're right, it does not work on the XM, everything else it does. I don't really use it and didn't realize the on/off buttons weren't lit up when it in XM.And you get surround sound with xm radio
Gotcha,do you know if i could watch movies through my iphone on the 8.4 screenThe overwhelming majority of music is mixed for stereo and not surround sound. For the listening you’d likely do in the truck, you just have left and right channels.
I honestly have no idea why surround sound is even an option. It’s really best suited for movies or other media types that are mixed for more than two channels.
Gotcha,do you know if i could watch movies through my iphone on the 8.4 screen