All dash board lights go on then stay on for awhile and when I hit the brakes they all disappear and everything goes back to normal but let off the brakes and hit the gas the lights come on and the radio turns off and stays off till I hit the brakes then comes back on. But when it's in park and on just sitting there idling the radio stays on and every things normal not sure what's wrong I replace both batteri cables and batteri and still does this ˟˟˟˟.

 

By the way it's a 91 four runner

 

You might want to try this on the general board section for electrical.

https://www.yotatech.com/forums/f131/

You'll get a much larger sampling of folks that may have an answer or idea for you. I can tell you I'm no help at all on electrical stuff. Good luck.