Hopefully, this will save somebody some time. I'm getting ready to buy an AccessPort. So I thought I'd do some homework, download the users guide and make sure I'm set to go. Interesting note here - the WRX and STI guides are different. The WRX requires a loopback connector to be connected into one of the plugs under the dash. The STI does not use a loopback. All you do is plug the green connectors together. I was under the dash looking for a non-existent plug for awhile on my STI. After a couple of tries of looking I finally figured I was using the WRX guide.
lol... "umm yea that is one of those RTFM issues let me transfer you to our techs." What we used to say to customers at best buy