Mine isn't under warranty anymore but they told me the same thing... but didn't tell me there would be an additional cost after the $70. Bullshit.
I did a full/complete follow the directions install on the damn thing and there POS equipment screws up and I have to deal with it.
I got maybe... MAYBE 6 months of good use out of it. Since then I've just been listening to music 3 minutes at a time.
If I have to pay $400 to fix it then why fix it? I can get a better piece of equipment for not too much more than that.
I don't NEED GPS. Shit... my droid works better than pioneer's