I should have clarified, The 2013 verano did not have a factory installed Homelink option. I spoke to the guy in Buick dealer parts and was told it was 2014 and newer. I took the my roof consule down and is set up for a homelink
I got the transmiter and buttons from ebay. It's the same bracket in my 2013. Top 2 pictures are Verano with transmitter and buttons I purchased. Bottom picture is from a Lacrosse, same transmitter and connector.
There are 3 wires, ground, 12v, and lights. Although the mounting bracket is there the wiring harness is not.
My question would be where to wire it in?