That's a good price, it needs updating but my pc is more or less had it so I need to replace it before I can check my sat nav did.
I did find this on the 370z forum that was interesting and works.
Our head units have a hidden menu to access different settings, 1 of is that you can change the Bluetooth name of the car😆. It's a simple thing but I change mine to bubble bee zed 😅
Try this.
There is a system menu and there are a number of things you can adjust with it, including the bluetooth volume (which I found useful):
1) Turn the car to "ON" or "ACCESSORY"
2) Turn Audio off by pressing the volume knob in (only necessary if it is on)
3)Press and hold the SETTINGS button
(If the safety acknowledgment screen comes up, press enter to get past it, then press and hold the SETTINGS button)
4) While still holding down the SETTINGS button, turn VOLUME KNOB approximately 20 clicks in either direction but do not press the knob (i.e. don't turn on the audio)
This gives you several menus for checking a variety of diagnostic functions, including a system self-test. You can also reset and control a number of bluetooth, speaking and other features