what i would do is find a wireing diagram and since you have the casset player (assuming you dont use it) i would fine you a phono jack (head phone jack) and hard wire it in where the caste player sends its audio out then when you select tape or however it is it works then you will be able to use your Ipod... thats my simple fix instead of paying someone to do it... maybe someone will be able to tell you something esier and maybe more managable... we did this with my co workers F150 when we installed his subs and it worked just fine