I have a 2004 t4r limited 4wd with the JBL sound system and no navigation. I spent the past week searching for an adapter that'd allow me to use my phone for music with an aux and/or iPod connection only to find adapters costing over $100 plus shipping . I took a chance buying the no more than $30 "iPod integration kit for toyotas" from "electronique botique" on Amazon, and it worked! Watched the "GTA Car kit 4Runner" YouTube video for a 20 minute installation.
For those with the same sound system, enjoy! I'm not sure if it works with jbl systems with navigation, but I believe your radio has an empty inlet just for these types of adapter, as I've seen in photos during my search.
For those with the same sound system, enjoy! I'm not sure if it works with jbl systems with navigation, but I believe your radio has an empty inlet just for these types of adapter, as I've seen in photos during my search.