I followed this guide: http://www.vogella.com/articles/AndroidLocationAPI/article.html → Item 6.0
Problem: my emulator works fine and everything works well (it scales well), however the actual map is nothing more than a grid. It states that I should be able to send coordinates through the emulator, but how?
Possible solutions? - Is my API key invalid? Not sending the correct coordinates? (I choose random numbers and letters)
You're right. This is usually a problem with your API key.
https://developers.google.com/android/maps-api-signup
It gets the coordinates, but if it does not generate a map, this is a definite api key problem. Did you request a Google key directly using java sdk keytool?
You are using debug.keystore, you need to use a different keystore, with a different api key, to run the cards in the terminal.