I just got done resetting the password from an inherited unit from a person who is now deceased!!! I can't beleive that there are folks on ebay who charge up to $26 for this knowledge!!! This worked for my unit, AVH-4000NEX, but according to the EBAY auctions, should also work for many other models as well.
First, I tried hitting the "reset button" located along the front faceplate, towards the bottom right. This didn't work. This would have been too easy, and even the manual states that it doesn't clear everything. Then after doing a bit more research, I discovered that one can act