K..You shouldn't loose that chime that I know of, if its just a standard gm harness. Your not getting any sound because you haven't hooked the blue amp turn on wire up on the d3 to the harness. Usually on bose applications I would put my own set of rca ends onto the gm harness and then plug them into the d3, because the bose system takes low-level inputs, not high level like the speaker wires put out. You could do that or buy a premium sound interface module and then it might be a little bit easier. That module costs $50..or $49.99

. If you don't connect it with the rcas or premium sound, then the speakers are going to start clipping and sounding like ass once you turn it above like 20.
I cant thank you enought for all your help,
3 things.
I have a avin N3..not D3 (not sure if the same)
I dont understand what you mean by blue wire , rca etc...?
And for the chime.. I havnt lost it, I never had it from the beginning i was just describing my car
Im really sorry for being a newb 