Hey guys, since its finally spring(ish) i figure i can finally add some of my audio from my last car to my ram. it has the 730 radio (I think thats right) its the touch screen with out nav. I'm wondering if it has a sub out put? if not how can i hook up an aftermarket sub? I don't want to spend more then a 100 dollars on the set up if i have to buy an adapter. Frees always better. Thanks!