Is 'Spanish' equal/the same everywhere?
No, for example in the Río de la Plata area (and some areas more) they use vos instead of tú (voseo), or nobody, except the real Spaniards from Spain, uses the 2nd person of the plural with the verbs (vosotros), in Andalusia, it's said, they swallow the final s and z on the end of the words, Argentines often start (without knowing why, and what it means ...) their sentences with che, and it seems that Chileans never get tired to say ya ...
But don't worry, it's not so important which Spanish is yours: people of all Spanish speaking countries will understand you.
If you want to hear how people speak Spanish in Guatemala here's a list of Radio and TV stations providing live online-streaming/direct broadcast in Internet.
18-50 Televisión
TV station
Guatemala City
Type and programme style: comprehensive, traditional/folk music, for teens
Quality of streaming: ok, player type: Flash.
Radio Mundial
Radio station
Guatemala City
Type and programme style: news, sport, reports, local information, latin/spanish Pop, latin/spanish Rock
Quality of streaming: ok, player type: Windows Media Player.
Kiss FM 97.7
Radio station
Guatemala City
Type and programme style: mix
Quality of streaming: ok, player type: Windows Media Player.
La Grande 99.3
Radio station
Guatemala City
Type and programme style: hits, top 40
Quality of streaming: ok, player type: Windows Media Player.
Radio Diamante
Radio station
Quetzaltenango
Type and programme style: traditional/folk music
Quality of streaming: ok, player type: Windows Media Player.
FM Mundo
Radio station
Quetzaltenango
Type and programme style: comprehensive
Quality of streaming: ok, player type: Windows Media Player.
To propose another radio/tv more, simply contact us: