I need help with a frustrating issue. My Retro Sound radio has static as if it is cutting out with the engine running. No issue with the engine off. No issue when streaming thru Bluetooth. I added another ground to the head unit, but no better. Changed dist. Cap and rotor too. Even ran a different antenna. Orange box ECM, 8 mm plug wires and resistor plugs. Radio has been in for 5 years, was fine until recently. Is it a car issue or a radio issue?
