LX665 was working fine. Working and it just quit like you had turned off the key. Lost everything including instruments. Started right up next morning. Quit again several days ago. Would not do anything for several attempts throughout the day. Then everything came on and started right up. Now nothing again. No panel except for a quick flash when you sit down. Buzzers come on but nothing else. Replaced seat switch, bypassed seat belt switch, installed new ignition switch, replaced all fuses, removed and cleaned battery terminals, newer battery fully charged, no unlevel ground, inspected all wiring and harnesses for cuts or wear, removed and eyeballed EIC, checked fluid levels, all new filters and fluids several hours ago. What would cause it to shut down without warning or warning lights? Now no EIC lights, no solenoid click, nothing. Any advice would be greatly appreciated!