[DeTomaso] Large in Door Speaker Magnet Shut Off the Sound if it Touches the Door Skin?

[Ken Green]

Everything works until I firmly close and latch the door, then no sound even though the radio still on counting down time for a song?  It is hard to see the dynamics, but I suspect the speaker moves just enough for the magnet to magnetically attach to the door skin.  When the magnet attached to the door, it probably alters the magnetic field affecting the impedance of the speaker coil, and that may cause the radio to think there is a short and shut off the speaker signal.  Later it works again, until I shut the door.

I'm pretty sure it is not the speaker wires shorting out.

I'm thinking a layer of non-magnetic material between the speaker and door skin may fix it.
Has anyone seen this?
Thanks,
Ken
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   Everything works until I firmly close and latch the door, then no sound
   even though the radio still on counting down time for a song?  It is
   hard to see the dynamics, but I suspect the speaker moves just enough
   for the magnet to magnetically attach to the door skin.  When the
   magnet attached to the door, it probably alters the magnetic field
   affecting the impedance of the speaker coil, and that may cause the
   radio to think there is a short and shut off the speaker signal.  Later
   it works again, until I shut the door.
   I'm pretty sure it is not the speaker wires shorting out.
   I'm thinking a layer of non-magnetic material between the speaker and
   door skin may fix it.
   Has anyone seen this?
   Thanks,
   Ken