Just in case anybody is curious, I will update with finished installation.
This was the required bracket.
Bracket installed on Pioneer head unit, AVIC-X950BH.
And Unit installed on my car:
Pioneer ND-BC6 Backup camera:
I enjoy the back-up camera more than I thought I would. And the guide lines were all adjustable so I calibrated them using tape measure and some masking tape.
Navigation system gets the job done but it wouldn't say the street name except for the major highways. And if it had a feature to show the speed limit on the screen like garmin does, it would be better. Route cacluation wise, I like pioneer unit better than garmin sometimes.
Parking brake overwrite was pretty easy and also used Axxess ASWC-1 to get back steering wheel control function. The steering wheel control is especially useful because this particular pioneer unit doesn't have volume knob.
Now the Alpine head unit that previous owner installed is on sale.
http://www.toyota-4runner.org/sale-n...ml#post1437060
Thank you everybody for your help!