Busted my passenger mirror backing out of garage.
got a new one, but it seems to require some sort of cable
Anyone knows what is 3 whole connector, and where I can get one?

mirror looks like this

 

I also busted mine backing out of the garage and bought the same one off of ebay. The new one should come with the brown connector which attaches to the brown power mirror cable the should come up right where you removed the old one. Look around, it should be somewhere. It might have fallen down in the door when you removed the old mirror. I'm pretty sure you don't need anything additional

It should be a very simple swap. Basically, pull the triangular piece off, unscrew the old mirror, attach the power mirror cable, screw the new one on and reattach the triangular piece. Took me 10 mins at most

 

I bought the same mirror from that company too. Everything is included. You just take off your old mirror and the only thing you have to reuse is the nuts to hold the mirror on. The connector in the car connects perfectly to the new connector on the mirror

 

You were both right. The connector was inside once I unscrewed the remainder of the old mirror.

I can't say it was a perfect fit (the top plastic corner seems to be sticking out much more than stock on passenger side), but it sure beats having no mirror.

If I didn't drop some tool parts inside the door, it would've taken 10mins. Thanks all.