I want to replace my compass/autodim mirror with a homelink model. I got one today at the salvage yard, it came with the mounting adapter. the harness was cut and I only got the plug that goes into the mirror. They also gave me a harness from a 2011 outback, unfortunately the plug doesn't fit the mirror. Can I combine the 2 harnesses to make a good one? If not, what is the part number of the correct harness?