No electrical, no idea why

Any sounds.  Clicking from solenoid?   Anything at all or dead?  

Take a voltmeter and take a reading of the battery if you haven’t already.

If you want to bypass a questionable battery get a second vehicle and run jumper cables. Batteries do just sometimes decide to die.

battery is your first step. If you can confirm you definitely have cranking power available then I would look at your ignition switch wiring and check for any wires you may have loosened while replacing the flasher switch

Larry

It might be worthwhile to reseat the battery cable that grounds to the car chassis.  That cable is secured to a ground stud with a nut and washer.  Over time that area can corrode and cause problems although it more likely to manifest as an engine cranking and starting problem.  When this happens the nut will be very hot.

I know it is a bear to get your hand back there and hand tighten that nut on the switch. Possible that two of the switch terminals contacted one another blowing  fuse to the ignition?

When you say no power to the dash does this mean no headlights, no dash lights, no power anywhere?

thanks for all the feedback.  I think you guys are on the right track with the ignition switch/wiring. 

rrs1 you're right, it was not easy getting everything snug with the switch and something there may have blown fuse to ignition.  I will check that. 

Steve, I will also check out the battery cable ground.

Appreciate all your help and will post the outcome.