83 Corolla Alternator

Hello out there, I am a new one. I just installed a Bosch alternator on my 83 Corolla, plugged it in and it smoked the battery leads when I reconnected the batt ground wire. I went back to the store and sure enough I should have installed the Nippon Denso rebuild. Now none of the dash lites up, headlights work ok, but nothing on the ig sw onward.
What do I do or look for? All the fuses in both fuse panels seemed good.

Bob