2004 Lesabre electric issues
 

My wife has a 04 lesabre and the electrics are goofy.i drove it to work and when I got ready to leave the car wouldn't turn over.here is the goofy part.When I turn the key on the dash lights up and the radio turns on.when I got to start it the power shuts off to the whole car.Now it has no horn or head lights,the lighter and aug power don't work.the blinkers blink really fast.the only thing I did before this happened was while messing with the speaker wires in the trunk they touched and the radio cut off.other then that ive checked fuses.cleaned the battery posts and the leads to both fuse boxes.replaced the starter.and same result.ive searched for similar problems but haven't seen any close to mine.anyone got any ideas on what it might be and how to check it out


Thanks