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So fitted novsight led fog and main lights the other day now my radio is losing signal more often is there a was a can get round this otherthan changing bulbs back have seen some things called ferrites? That attach to the wires to help stop this but unsure how good they are any help appreciated

That's often the case with "noname" stuff like this, HID kits or cheap phone chargers. Best to get rid of it, before you run into bigger problems.
Philips or Osram if you want quality.

Ferrite can only reduce interference coming through the cable, I have a feeling it's not gonna work in your case.

This is a very common problem with cheap led lights,light bars etc,you need to check when buying led lights that they are emc’d that means that they won’t cause any interference with radio signals