bluetooth with my s4

[bulldogs195461]

im hoping someone can help me on this,i have a samsung 4 phone,and ive just brought a 2009 ute with a toyota stereo.i can connect my phone to bluetooth and use hands free.what id also like to do is stream my podcasts from my phone via bluetooth through the stereo as well,but i cant see to manage it,it seems to try and get audio you have to press the aux button.what im wondering is as its a bluetooth stereo and five years old is it possible to connect a up to date phone through bluetooth.phew hope that comes out ok,cheers john