My 2016 FR 5door has what I can describe as a blown speaker sound when certain songs are on the radio. I thought that the speaker had gone but I have just found out that if I push against the door handle when I can hear this distorted sound it stops. The speaker is fine so it must be some kind of vibration in the door card. Does anyone know if its a simple fix? I have searched but most posts seem to come up for the 3 Door. Thanks.