several lights go on and off on dash

[speedr]

I recently purchased my svx and for the last 1000 miles it has been trouble free until recently. I am having some seriously strange electrical problems. When the blinker is on i can see the D in the gear selector display in the dash dim slightly. Sometimes the stop lamp light will come on when i push the brakes but not consistently. These are somewhat normal maybe but the weird one is where the stop lamp, battery, abs, power steering, and brake lights come on all at once and then go back off or sometimes they will come on slightly and then go back off I have had them stay on once for about a minute but then they just went out again. The car has a new optime red top battery and a new alternator. I hope someone can help