Listen to DCAL fm, they do livedrive from 7-10 and 4-7. The frequency is 103.2fm
Thanks to them I save a ton of time every day - with options from Blanch of the village, N3, Castleknock, Park, Blackhorse they usually give me the right steer as to which route to take. Ditto Parkgate St v Queen St v Church St.