Just completed an upgrade from non nav factory Bose to Nav factory Bose head unit In 07 Avalanche LT. Bought factory nav off eBay as a reconditioned unit that had been unlocked for plug and play. Everything turned out good until I drove it and used turn signals. The sound of the signal that comes through the drivers door speaker when the signal is on is extremely loud. Tried adjusting chime volume in DIC but that doesn’t affect signal Volume. Any suggestion? Radio sounds great but signal volume is so loud that I’m pulling the radio back out. Old radio puts signal volume back to normal. Any work around known? I’d be ok with no signal sound if there’s a wire to clip. Radio seller who does refurbs has never run across this issue. Any ideas are welcomed.