Right at the beginning of the game you come up to your contact J.B.. The Radio is directly to his left across the alley on a table.

In the zone where you and your partner place the second set of beacons look out over the open area and to the right side. The Neko Cat is on a roof section.

After making the first moral choice, the building will blow open. The Radio is right in there. Can’t miss it. It’s right before you need to do a co-op lift on a metal gate.

Right after Radio #2 you’ll come to a tutorial on PMC Strongboxes. The Part is inside this box.

You will come to a section where there is a square metal catwalk that is over a turret. The cat is on the left side of the square catwalk section on some vents.

This in on the metal catwalk section in the back left corner. It’s right by the ladder.

Downstairs right by the second turret in the next little room over by some taped up cardboard boxes.

This is in the control room for the bridge.

In the control room jump out the window by the Radio and it is on the roof area.