when I cut on my lights my radio display goes off,and my blinkers etc are messed up..

Hello,heres another problem:Lol,When I cut my lights on,the radio digital display goes off,but yet the radio will still play but I just cant see the stations!Also,my blinkers have only worked like one day out of the last week,and also my hazard lights hav'nt worked at all!It seems that everything electral in this car has went to crap ,all at the same time!Are there any tips you can give ,I.e,where should look to first,some general direction so that I know where to start and what to look for,etc, etc so that I might remedy this problem?Thnaks alot.---Frank [93' grand am Se]

it's a multifunction switch gone bad. It controls the blinkers, cruise, headlamps, etc..