hey art-
why not run an afermarket headunit and use this that u posted. u wont need as many converter boxes, i have an ipod cable on my with the aux cable so i can use my phone aswell and listen on the truck speakers.
Belva AUX2RCA (AUX-2-RCA) http://www.sonicelectronix.com/item_...AUX-2-RCA.html