ianb

hi everyone i have recently bought a citroen xsara picasso 1.6i 16v sx on a w reg year 2000 i abolutly love the car as im a family man i have only had the car 5 days and bought it privately out of the auto trader and im having problems with warning lights on the dashboard abs non functinal sign comes on now and then both airbag lights come on and go off windows go down but wont come up radio goes on and off on its own engine revs up and down on its own please help me somebody as im at wits end what could this problem be and has anybody had these problems i would be very greatful if you could let me know what it is many thanks ian