[cod.dad]

So I have a 2012 canyon.....Behind the radio there is a black box with a blue GM label on it with a bunch of wires coming out and one of the groups of wires ties into the radio wiring....what is that box for? I am trying to put an aftermarket in it I have everything I need including the nice metra GMOS-01 harness. I just need to know if its safe to pull the wires from box?

 

[Jet19912]

Not 100% sure but I'm going out on a limb and going to say it might be the chime retention unit. If it is it's used for like door chimes and some warnings.