A = ah as in father
I = ee as in feet
U = ooh as in food
E = eh as in head
O = oh as phone

G is a hard g like in good.
J is soft like in joke.
The TSU is like in tsunami (tsoo nah mee).
FU is very soft, kind of like saying 'fwho' with a soft f sound like in feather.
The R sound is a little different and very hard to explain:
  Kind of like an L and an R with a little bit of a D in there: RI = ldy (say 'moldy', say 'oldy', say 'ldy').