Thanks for advice 4by4th. I did check with them and found they have an adapter upwards of $120. I was hoping it would be a cheaper plug and play option, and I'm still hesitant because Amazon reviews are mixed. Do you have any experience with this brand?
Thanks!
Yes, like I said earlier, I have this in my 4Runner. No idea why Amazon reviews are mixed, it works perfectly for me. I previously had a USA Spec iPod adapter that had a cord that plugged into the iPod and later into my iPhone 4s. I replaced it with the Bluetooth USA Spec to stream music from my iPhone 5s. Both work flawlessly and sound great. I honestly can't tell any difference in sound quality from CD's to the bluetooth streaming wirelessly.
The steering wheel controls work for volume (obviously) and to skip or repeat songs. When I get in to the 4Runner, it automatically connects and if I turn the radio off and on quickly, music resumes where it left off from my iPhone. My wife and son both use it with their iPhones too. Sometimes if more than one of us are in range, you might have to go into settings on your phone and select it since it can only connnect to one phone at a time. It's kind of cool though to turn the radio off and back on when we all get in the 4Runner and it starts resumes playing music from whoever's iPhone is connected.
Something else it does very well is hands free calling. Music turns off when a call comes in and the radio tells the phone number calling and you connect to the call with the steering wheel controls. Calls sound loud and clear from both ends. When you hang up, music resumes where it left off.
Well worth the $120, it does so much more than any Aux plug ever could. I know that from experience because my 2008 Honda Accord came with an Aux plug.
I recommend getting it from Crutchfield if you have any hesitation with installation since their technical support may be helpful to you. Ask them to be sure the wire harness will plug directly into your stock radio.
Here's a link to a webpage that shows how to get to the back of the radio:
How to Remove the Navigation Head Unit from a 2003 Toyota 4Runner