Had RFI issues with a FiTech system. Used the cheap stainless covering you can buy to make regular vacuum hoses look like braided line. Soldered a ground wire to the braid and ran all the wiring through it. Fixed all my issues and it doesn't look bad either. https://www.ebay.com/itm/224228250078?hash=item34350b91de:g:-EcAAOSwETVfqXwG
