Merry Christmas to All.

I have installed 2.37 into the Azur 5050 in car entertainment system running on Android 5.1.1. Everything works fine except the system is always defaulting to 100% volume on start up. This causes the radio or whatever is running to output the full volume. This happens every time SP is started no matter what volume level was set during power off or exit from SP.
Anyone knows how to solve it? Thank you for any help.