Replaced OEM Gen 4 with Gen 5

[unixadm]

I picked up a used E7007 Navigation unit from a Sienna to install into my 2005 4Runner that has factory navigation. I want to know if anyone has a part number for the Toyota wiring harness that contains the microphone and backup camera input/outputs? On my 2005 4Runner, it has the OEM rear camera. On the back of the E7005 unit, there is a four pin connector for the backup camera. On the E7007, it lacks this connector, however it does have another wide connector at the bottom of the unit which in the OEM service manual is labeled R10. Ideally if I could pick up this harness, then I can easily install the microphone input, and get the rear camera working again. I know I can pull the pins from the connector I already have and push them over the pins on the back of the head unit, but I'd rather have it plug and play. The only reason I swapped units was to get WMA/MP3 capability. Once I get everything up and running I'll replace the SMD leds to complete the conversion. Please let me know if anyone can help.