Blower suddenly stopped working with no warning. No air movement on a/c or heat at any setting. Checked all the fuses and they are fine. Where are the relays? Has anyone replaced a blower motor? I can't find any links to location or removal instructions. Thanks

All these fuses are involved:
10A #6
15A #10
15A # 11
10A #12
10A #19

It's located behind the glovebox, just under the in-cabin air filter (see below). If you recently changed that filter or had it changed it would be worth checking that nothing (including the new filter) has fallen down into the blower and jammed it.
Good luck.