Ok... FINALLY got the answers I was looking for... ... Thanks Bill Lins for pointing me in the right direction. .

After calling Magna 4+ times and poking multiple selections on my phone, going thru various Michigan Magna phone directories, I stumbled across a guy, who was VERY surprised I was able to get to him. I couldn't tell exactly how I contacted him, but thanks to Ms Nice lady who listened to my saga and connected me to him. . By the way he spoke, with intimate knowledge of RAM mirrors and products, I'm fairly certain he was an engineer or the next best thing.
He told me that 2012 mirrors(driver side only) will NOT work on the 2013 as they have put the temperature sensor inside the driver side mirror housing. Thus, if you replace the driver side mirror, it will disconnect the sensor. You can put a 2012 on the passenger side as nothing was changed with it. .
Now I'm guessing but i would suppose a lot of functions are tied into the temp sensor such as DEF heater amongst other things. ( I thought I read the DEF tank has a heater)
So anyhow, looks like for now, until RAM or Chrysler come up with a tow mirror package cheaper then $1200 for 2013 (only $400 for 2012) I'll have to deal with multiple headlights flopping around on multiple mirrors on my "slip-on" mirrors, hell backing into the covered berth and the embarrassment of having a top dog, class leading tow capacity diesel truck with sissy *** mirrors on it... . LOL