Why go with a stock headunit? Go aftermarket. Almost all of the headunits on the market today, even the lowest end ones, have aux input, ipod input, and even bluetooth. And they're relatively inexpensive too; probably less than the cost of a stock unit.I have an 09 f550 xl single cab work truck. It has the am fm stereo. Does anybody know what previous year f-series will fit this truck. I would like to ugrade to a single disk wit the aux. input.