Bluetooth and Pioneer HM76

[Woo-Cash]

Hi. I'm using Aimp with stereo Pioneer HM76. I connect to it via Bluetooth. Sound is working but display is not. It's supposed to show the title and some additional info, song time and playlist time. Unfortunately it doesn't work. It shows only titles from videos from my browser, never from Aimp. Song time is always --:--:-- and playlist time shows 96:31:23, I have no idea where is it from, cause my playlist is about 69 hours.
Is there anything I can do to make it work? Is it Aimp fault, Windows fault, stereo fault or is it only a matter of proper configuration?