Hello All, I have upgraded my stock 6 disc changer to a non lux Navigation unit, everything works great except for the chime in the truck is soooo damn loud and I can't turn it down. I have been to a GM dealer and they said they could not connect to my Nav unit thru my truck to turn it down, I have tried to cut the light green wire that goes to my BCM and it still chimes. I want it gone forever! Please help with any ideas. Thnaks so much Shane.