Sam's and Dean's FBI aliases are "Stiles" and "Murdock". Stiles and Murdock were the main characters of the 1960's TV show Route 66 (1960).
The "dusty Greek poem" Bobby reads is by Simonides about virtue, and has nothing to do with Sirens.
The stripper bar is named The Honey Wagon. A honey trap is a con where the mark is lured in with the promise of sex, so honey and sirens might seem to go together. But a honey wagon was the 1800s equivalent to a septic truck. Before municipal sewage systems became the norm, in town outhouses had holding tanks. Periodically the honey wagon made the rounds, hauling off the astoundingly nasty contents.
Moneca Delain, who plays the siren when it is disguised as the stripper Belle, looked up the history of siren's in Greek mythology in preparation for the episode. This led to her using a soft, seductive voice when speaking and a kind of slithering movement when walking.
When Sam is talking to Bobby about the siren and Bobby mentions venom, Sam says, "...then they (referring to the Siren's victims) go all 'Manchurian Candidate'." This is a reference to the novel "The Manchurian Candidate" and the movie of the same name, where a U.S. soldier is captured by Communists and brainwashed into becoming an assassin.