Looking for a Audio/Video Service company in Nola area

Looking for a reliable and reasonably priced company to come update, make more functional my homes audio and video controls. Currently have a pioneer receiver that's roughly 10 years old and it operates 2 separate zones with music, tv, Pandora, blue ray etc.

At one time it worked great, could operate it with my iPhone and/or the universal remote. For some reason now one of the zones doesn't work correctly, has a lag or certain things flat out don't work. Would love to find someone just get it to function the way it once did. The guy that installed it I don't want to use. I find most the guys in this business want to constantly sell you their preferred hardware rather than making what I already have function. Not to mention these companies often speak another language rather than explaining and teaching your systems functions in a way an average Joe can understand.

Switching from cox to At&t here shortly so I figure would be a good time to get this done.

Also, anyone have any insite on what these guys charge for this kind of work? Aside from any new equipment needed, figured they had a service charge and hourly rate or if they provide estimates?