My 2004 Honda Pilot is somehow losing its connection w/ a power source. When this happens all dash gauges bounce up and down when I turn the car off. When I restart the car, the trip meter/exterior temp goes back to the trip meter even though I always leave it on temp. The entire electrical system will for a brief second completely turn off while I am driving the car. Occasionally harder to start than before - when attempting to start the car, it does nothing (similiar to having a dead battery, but my battery is testing fine). If I leave it alone for 30 min and try again it will start fine, however the entire system has reset itself – the radio needs the theft code re-entered and driver power window needs to be re-programmed. I cleaned battery terminals etc. but no change. The dealer says the car is testing fine – all electrical systems are fine, the battery is fine, grounding and connections are fine. Is anyone else experiencing this issue?