I have an eclipse avn7000. worked great for a while until last night. i installed my amp and my ipod adapter. didn't touch anything else. now the radio makes a very disturbing crackle noise under any volume. gets worse the louder you turn it up. not much sound out of it at lower volume. i disconnected the amp and its the same. then also the ipod adapter. wiggled the connector to see if it was pinched. nothing changes. i even changed the antennae adapter. i only have the front speakers running out of the radio itself. i unplugged them and the same thing. then ran just the rear speakers out of the head unit. it is wired up using a harness connector. i have installed quite a lot of radios and amps in my day. i am wondering if there is an internal amp in this HU? also it happens in dvd,FM,AM,CD.etc..