I have a (2002 ford f-150 harley davidson).About a month ago the heater core went out in it and I replaced it .After I replaced it and put everything back like it was .All the windows will not let down ,the windshield wipers will not work ,and the radio will not turn on .
Owe and you know that ding noise it makes when you put the key in the ignition you don't hear that anymore pls HELP !!! IT'S MY FIRST TRUCK!!!

 

I would reccomend taking the dash back out and making sure that none of the wires came undone or didnt get put back together enough. Sounds like a harness of some sort may be unplugged. This is my reccomendation but may not be the fix depending on if anything was undone or not. If you did not have to take out the dash to change the core id check fuses to see if maybe one poped for some reason.