Hello lurker!
While I'm not a fan of the BlendMount (I think it draws too much attention to the V1) I am a huge fan of direct wiring.
Here's my a V1 mounted in my Z that's been direct wired to the mirror using a
StealthCord.
Using the StealthCord should save you from having to tear into the console since it just plugs into the back of the mirror. I needed a 12" cord because I had to go up and then down the wiring channel, since you're using a BlendMount you should be able to get by with an 8" cable.