Hi Crew I have recently purschased YT5760L XY Audio: 1.68 (AC8259). The problem I have is that when my unit boot/start up there is no bass going out to external amplifier but when I drive for around 15 - 20 min and I swith off the engine and unit turns off , then after the engene start again and unit wakes up (without booting/starting up) the bass is going to my external ampliefier. Also there is litlle speaker icon on menu when you slide from the top of the screen ( where WiFi icon is displayed ). I believe this should turn on/off bass or external amplifier but doesnt do nothing. Anyone came accross this issue please?