Power supply and radio interference

[SHC]

Hi
I've got an iPAQ 2210 with a bluetooth GPS receiver. The iPAQ is powered from the cars 12v cigar lighter socket. The problem is that when powered up it makes medium wave impossible to listen to. If the power lead is unplugged then reception is OK. Is there anyway to supress this interference?
Thanks
SHC

[Dave]

It sounds like the iPAQ lead that's an issue. You can get ferrite blocks that clamp around cables (esp power and speaker cables) from places like Maplin and this might help reduce the interference.

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