You can try but anybody who has worked on these cars know that tiny hands help a lot and even then it might not work. It isn't hard to remove the bumper but there are steps and it shouldn't require you to replace any parts unless you're missing some tabs/screws.
You can watch TTGator video 18 mins in to see where that harness is. You can watch the full video to see how to remove it. Give him a thumbs up.
https://www.youtube.com/watch?v=zQ99bDEesu4&t=760s
Hybrid Mode
