Yes, by shielded cable I meant a cable with a metal sleeve around it, usually woven from wires, for example like the USB, audio or antenna cables.
The resistor you need to move is that black part with white "0" written on it between the antenna socket and the ceramic antenna:
You need to desolder it (use a safety blade to heat both ends of it at once) and then re-solder it horizontally, to the pad next to it. If you damage it during desoldering, you can replace it with just a short piece of wire.
However, I'm afraid that if the antenna is going to be close to the source of noise, this will not help, as you will still get all the noise through the antenna.