I have a 99 jimmy 4X4 SLT with a stock CD/FM/AM unit. The unit has an Aux button. Currently, the Aux option is not put to use, and I am thinking I would like to have a female 1/8" headphone jack mounted in the truck to utilize the Aux option for an ipod or a psp. Does anyone know how to go about that? Would the unit have RCA inputs on the back that I could run a 1/8" to RCA adapter to? If not, does anyone know if a kit/adapter/gizmo exists that I could purchase and use as a 1/8" female jack to what-ever-the-heck-type-of-connector I would need to connect to on the back of the stock unit I have. I could use all the ideas you guys/gals would throw at me. THANK YOU.