I bought a used D3 aprox. 3 months ago. Has been working fine. Until, about a week ago it starts resetting on it's own. It will be playing fine. Then it will almost loose power and reboot. It also will through up a DVD ROM problem error.I spoke to Pioneer and they said it might be a problem with the install and the unit has "learned" that I am trying to use the NAV system while driving. I am just wondering if there could be a problem with the emergency brake wiring or something like that.Any ideas?