Investigators say the drugs were found in the cab of Medina's truck last Thursday during the traffic stop in Madison County.
Investigators say the 45-year-old man insisted he didn't know what he was carrying but believed it to be cocaine, marijuana or money, and that he was paid $6,000 to drive the load to the Chicago area.
Medina was ordered detained pending further proceedings.
Online court records do not show that Medina has an attorney.
