Audipoop

New battery plus the driver side door loom had missing/broken connections which needed joining together again. It has been fine since

Hello everyone. I own an audi a3 8p 2010 1.4 version. Recently my windows from all other passengers sides would not function through my pannel. A day later the dashboard started flickering. By flickering I mean the display has light, then loses light and it returns a few seconds later. I thought it was the display at first but it turns out that there is more too it. When the display loses its light, the battery sign comes on, the door quickly locks then unlocks and the heater when running turns off, as soon as this happens all at once everything is back to normal within 2 seconds. Then about 40 seconds later the cycle repeats. It's driving me mad. Anyone know what it is?