I picked up a CDL switch on ebay and am ready to install it. I'm trying to find the factory wiring/harness/plug behind the dash but am not having success. Just need to know where to look. Please don't tell me to use the search tool. I just spent the last 3 hours doing that and reading through dozens of CDL threads. I know all about what switches will work off what year yotas and what the CDL is for and even how to install it. I came across a few threads that mentioned what the harness looks like and even got a pic but I'm still not sure where I should be looking. Do I need to remove the dash to get to it or can I add the button and keep the dash on at the same time?