My husband installed a third brake light flasher component on our Accord (tired of being hit from behind!). We want to install one on the IS 250, but he can't determine how to get to the wiring harness for the third brake light. He's a whiz with cars, but this one has him stumped. Anyone have an answer??

 

Its not accessible from inside the trunk? If not maybe from inside?

I found this- it may help.

 

He's tried both but no luck. I will print out this image and see if that helps.