Complex sentence: Radio suppressor type spark plug wires use compressed carbon powder as a conductor, rather than solid metal wire, to reduce radio frequency interference (RFI) produced by the wires, which may cause malfunction of sensitive electronic systems in modern vehicles.
Split into simpler sentences: Radio suppressor type spark plug wires use compressed carbon powder as a conductor, rather than solid metal wire. This is done to reduce radio frequency interference (RFI) produced by the wires, to prevent malfunctions of sensitive electronic systems in modern vehicles.