While driving listening to the radio or a cd or Bluetooth conected sucendnly turns off the central screen and sometimes both screens and they come back on and off several times, can someone offer some help please?

My car turns on but when accelerating over 2000 it turns off. The radio stays on but I can’t drive. I’ve already replaced the battery, No engine light is on and I’m wondering if this could be related to a fuel pump issue or a crank shaft sensor… that’s what the mechanic said but anyone else have ideas? Suggestions?

Does the nav system have a separate fuse from the radio?

Driving on road and entire dash blacked out for about 20-30 seconds. Unrelated Honda symbol when you turn on the radio gave locked screen with Honda emblem and wiggly lines vertical. Shut car off and restarted and radio functioned normal again.