Hello forum, yesterday I pressed FM in CD operation. Then I chose a stored transmitter (1). And from then on the sound was as if you were with a Fiat Panda in the valley between two mountains. Just rushing, no depths, no highs. Station search did not change anything. So I thought of a defect of the antenna. When I then switched to CD, the sound was identically catastrophic. Also when choosing USB (iphone): rush, crack, on all loudspeakers. Where should di I have Dynaudio. So in the trunk is the subwoofer and under the passenger seat is also something that probably belongs to it? At least the part under the passenger seat is always very warm with longer rides with music operation… I am grateful for every tip!