The Red Dead Redemption 2 harmonica is one of the key items required to help polish off the Errand Boy trophy/achievement but, unless you know where to look for Sadie’s harmonica, you won’t have a hope in hell of getting a good tune going around camp. Here’s the exact Red Dead Redemption 2 harmonica location with a map below on how to find the harmonica.
Red Dead Redemption 2 Harmonica – Location
You can manage to pick up the harmonica, which Sadie asks for in Chapter 3, before the fact. To do so, you’re going to need to head on over to Flatneck Station. From there, ride east until you come across Emmet’s farm (circled above).
While you may want to sneak around if you haven’t completed The Noblest of Man, and a Woman side mission, your main focus should be the largest cabin/building in the vicinity, with a campfire directly in front of it.
Walk into the cabin (for the avoidance of doubt, it’s the brown cabin with a grey door) and immediately turn towards the cabinet tucked in behind the door to your left. Use your Eagle Eye vision (click both sticks in) and you’ll see the red harmonica just sat there waiting for you. If Emmet is around, though, be careful: he’s liable to shoot you at any time.
Red Dead Redemption 2 Harmonica – How to Take Without Being Shot At
If you don’t want the stress of an angry farmer pointing a gun at you, you can simply wait until the Chapter 2 quest mentioned above, The Noblest of Man, and a Woman, which will see you talking to Emmet and literally clearing out some pig shit for him. Yeah. You can imagine what Arthur does to him after that.
Once he’s out of the picture, simply slide in and take the harmonica with no repercussions to speak of.