rt122

Wondering if anyone can help. When I start my Xsara Coupe 1.6 the speedo and rev counter needles vibrate for a few seconds and make a loud buzzing noise, The car starts fine each time. Also I have noticed that the clock is resetting itself occasionally and the car will occasionally make a loud beep when turning off the ignition (same noise as if I have left a door open) Any ideas anyone please?