I have a newbie Ipod question. I'm going to connect an Ipod to my stock HU. I already ordered the Denison controller. The installer just told me that he usually uses a controller built locally (Los Angeles) and that people are generally not happy with it because the Ipod is very slow to respond to commands that are given thru the HU. He says any controller that I get is likely to have the same problem. Anyone with experience with this? Should I cancel my order for the Denison controller and just use the headphone output?