Let's start off with the fact I have an N2 and a Z3. On my N, I have to crank the volume to 30-40 to even hear it on some roads. On the Z, the jump in volume between 5 and 7 is so great I can hardly listen to it on 7 while sitting still with the windows up. Is there any way to make the volume more granular on the Z series or would that be a programming request?

Note that I'm making these observations using the FM tuner so no attenuation or gain is available. My digital channels are only adjusted by +/- 1 or 2 to level things out a bit anyway. I know that there will be differences between vehicles but the volume scale on the Z is a significant departure from that on the N.

Do you have amps installed? Mine is not loud at all between 5 and 7. If you have amps installed, you could try adjusting the gain on the amps.

Thanks for the suggestion Garret.

I have a factory amp that I wasn't thinking of which may still be connected. I'll have to speak with my installer.