I just recently found out that if I connect my deq-p8000 I lose the ability to control the volume thru the head unit. Instead, I have to use a remote. Also, If I get bluetooth I have to get a seperated speaker. Are there any universal 5.1 DSPs out there that will allow me to keep everything as integrated as possible? or am I screwed if I want 5.1? Any help would be greatly appreciated