i was just wondering, i know someone already posted this, but does any know if the stock radio on the 04 XA has RCA jacks, i would like to put in a nice new sub, i dont actually wanna take the thing apart, and im kinda broke, so buyin a new head unit would not be doable right now, it would be nice to have some thump in the car.

No, it doesn't. You either need a line converter or a new head unit. Check out the Ice, Electrical, Interior section http://www.scionlife.com/forums/viewforum.php?f=21