Has anyone used iSimple with HD reciever and ipod control? Wonder if it has improved sound quality.

I can swap out the JBL head unit with my JVC with ipod control, and hd tuner and add the bluetooth to it and get the steering wheel adapter control, or I can get the iSimple that adds HD tuning and iPod control. It would be nice if the FM receiver that comes with the iSimple improves the sound quality or maybe it doesn't and a new HU is still the only way to go. Anyone got any idea?

The new HU would only be using a different fm receiver but using same amp, and so would the iSimple