I have a 2002 Infiniti G20 with factory bose. The voice guidance works but its at a low voice even when I set the volume to max. You can barely hear the voice when it tells you to make turns. Any ideas what can cause this? I have yet to call the installer but if it can be fixed by changing some settings, I'd rather try that. Thanks.

thats really funny cuz i have an 03 TL-S with factory bose and I've had that same problem intermittently it was never so low that i couldnt hear it but when i went to volume adjust the demo voice was alot louder then the actual

So I called Pioneer about the low voice guidance, and they told me that I should have the factory bose amp bypassed. Otherwise, the sound quality and the voice guidance is compromised. My installer said they used an adapter to integrate the factory Bose amp. If the correct adapter was used, shouldnt the sound quality be better than factory and the voice guidance loud enough to here?