Hey there,
I have owned my N4 for approx. 3 years now and have never had a problem.
Than the other day I'm driving down the street, and hit a bump... I lose all speakers, and the sub still works.
I still have all functions available to me on screen.
I hit another bump.. and the sound comes back.
I read through multiple posts here on avic411 and come across a few things. So I decide to pull the deck, and re check all wiring, etc.
Upon putting the deck back in, I reset to original factory settings.
Everything is good for a few minutes, and than the sound cuts out again.
