JBL/Delphi Factory Stereo question

[sasair]

I just purchased an 06 Camry SE. I was wondering if anyone knows what the plugs in the back of the stereo are for. In particular there is one harness plug that is unused and I qwas wondering if anyone knows what that harness could potentially be used for. The toyota part number for my head unit is 85120-AA200. It appears the empty plug is in between another harness and where the antenna connects. I was hoping that maybe some of the connections in there might be some kind of line in. Toyota sells the unit as the "JBL 3-in-1" but the sticker on the unit indicates it is made by Delphi. Here are some pics of the mystery plug:

[azrunner87]

Not the answer to you question, but can you tell me how you removed the radio? I want to access the antenna cable to add an FM modulator but do not know how to remove the radio. Just got a 10 disk MP3 changer and have not even looked at how to remove the radio yet. Thanks!!!

[majorgercko1]

they are probably for the steering wheel controls?

[drunken_panda]

The one on the left is the main harness, the next one is the wheel controls, then the CD changer port then the diversity antanees. I asked this before, but does anyone know the pin outs for the CD changer port?

[sasair]

I have since figured out the plugs. You are correct, the plug withthe many wires is the main plug, the next one with the three wires is the steering wheel controls and the empty one is the CD changer, which I wasn't aware my factory head unit could control at the time I wrote that.

Sorry I don't have the pin out for the changer plug, but removing the radio is very easy.

Start by removing the climate control panel using a trim removal tool or if you are careful, a flat head screw driver. The climate controls are only held in with clips that pop straight out. There are two wiring harnesses that plug into the climate controls (at least on my car, I have no security light like some do). YOu can unplug those harnesses if you want so its not dangling there. Just above where the climate control panel was, you can pull around the bottom of the two vents to pop out the trim section around the stereo, also held in with just clips. One wiring harness on that piece for the clock and passenger airbag and seat belt indicators. Once that panel is removed you should have clear access to the head unit. For bolts (10mm) hold the head unit in place, remove those and the unit pulls straight out. Mine had two wiring harnesses and two antenna cables as you can see in the pictures above.

Hope this helps!