hi i have an avic d3 installed in an 06 4runner. the volume is low a lot of the times when i start the car up. it stays low for the duration of the drive. i even turn it all the way up to 40 and it is still low. when i start the car up the next time, it may be at regular level again and of course i left it on 40 so i almost go deaf. is there some sort of software update that will address this issue or do i need to change a fuse or something. i mean sometimes it works at regular volume and most of the times its low. it is very frustrating. somebody please reply to this post. much help is needed.