Electrical system / Intermittent "accessory" relay failure -
On occasion, when starting vehicle - multiple systems attached to that relay (radio, fans, windows, dash panel displays, directionals) will fail altogether or "stutter" on and off until it either resolves itself when car is restarted or relay itself fails. Relays have been replaced previously due to this but do not feel it is failure of relay itself so much as short elsewhere beneath the dash. Have also understood that faulty ignition switch could be a culprit. Any precedents/advice? Please & thanks