I Have a early 2015 ltz 2500hd diesel but do not have the ambient temp sensor in my tow mirror as they are the old style factory tow mirrors and I believe the early 15 HDs did not have one in the mirror unless high country. My question is will I need to purchase the diesel powerfold tow mirror for the passenger side that has the sensor? The set I currently have is off a high county gas truck and has the power fold option and id really like to use them but it does not have the sensor.