XFiringInNC is correct. All these units have interface learning curves. Some a bit more involved than others. I have an Alpine that was installed by Tweeters last summer before the went bye bye and I have noticed that my stereo no longer comes on without the key in the ignition and turned to accessory. Before it used to come on when turned on, no key, just like my Mercedes. So I'm wondering if they screwed up the wiring?
ppro any thoughts?

I am happy with the sound and the I-pod operation.
Pat