dudu-lai Yes stock amp When the vehicle settings are stuck at L9, if i make "sound field adjustments" go all the way to the R the sound goes away completely, if i move it all the way to the L I hear sound.
I found yesterday if I randomly select a different canbus box from the settings, then go back to the simple one, I can adjust the vehicle settings normally. It usually stops working when I turn the car off then back on though.
Another problem is the truck will randomly drain the battery. Sometimes the battery will show 0A being used after it's turned off, but several times it shows 0.25A being pulled after turning off and it kills the battery overnight.
I asked the seller to send me a Raize canbus box. When I select that I get many more options under "vehicle setup" and the HVAC screen looks nicer also.