When I received my speaker shipment, the ceiling speakers were 2 to a box.  I had 5 boxes for a total of 10 speakers.  What I found was best was to use a rolling dolly cart to move them from the delivery address to the new location (I wasn't getting service there yet).

Then I unpacked one box at a time.  I immediately changed the impedance on the speaker so I wouldn't forget later. I can't speak for all boxes, but mine only had a complete speaker unit and a crossbar piece. Super easy to unpack!  I just took the plastic off each piece real quick and set the 2 speakers aside.

If you're in a construction zone, be careful not to unpack too much at once.  The area I was working in was dusty and dirty.  I just unpacked what I knew I was going to use at that time.  It worked out great that way!

This is not me or my work or company or anything but if you're new to stripping wire, this is for you!  How to strip a wire. 

What I found from my install is to determine right up front how much of the plastic to strip from the wire.  It's not as easy as it seems but you only want as much exposed wire to make your connections.  Leaving extra-long exposed metal can cause problems if two long wires touch each other.

All I did was look at where the wires were going (into a switch or to be daisy chained) and determined how much exposed wire to leave.  Regardless, check out the video: