Here's the thing - they're probably not trying to piss you off. It may be unintentional, or they may just not care.
Grab a 12 pack, and head on over. Tell them you're their neighbor, and you thought you should get to know each other. Once you've got a conversation struck up, ask about that awesome stereo system. When they start to talk about it (they will, they're proud of it), casually mention how you heard it late one night, and how very loud it was. 'Yeah, I heard your music the other night and thought 'Whoa, that's crazy loud for this late', but then I figured that's not going to happen on a regular basis. You don't party like that often, do you?'
Then get them talking about the cannon muffler truck, and work your way down the list.
People just aren't willing to actually talk to someone these days. If you've got a problem with your neighbor, go over and handle it just like you would have with the old neighbors.
If that doesn't work, then move on to other options, but try talking to them about it in a friendly manner first. Honey and vinegar, y'know?
Grab a 12 pack, and head on over. Tell them you're their neighbor, and you thought you should get to know each other. Once you've got a conversation struck up, ask about that awesome stereo system. When they start to talk about it (they will, they're proud of it), casually mention how you heard it late one night, and how very loud it was. 'Yeah, I heard your music the other night and thought 'Whoa, that's crazy loud for this late', but then I figured that's not going to happen on a regular basis. You don't party like that often, do you?'
Then get them talking about the cannon muffler truck, and work your way down the list.
People just aren't willing to actually talk to someone these days. If you've got a problem with your neighbor, go over and handle it just like you would have with the old neighbors.
If that doesn't work, then move on to other options, but try talking to them about it in a friendly manner first. Honey and vinegar, y'know?