Based on a previously posted suggestion from Mike at ECR, I purchased a heated windscreen from RN. The part number is RRC7310. This is not the stock replacement, but the military version which is less expensive ($200+ less IIRC). Having just received the windscreen, I noticed the electrical connections were different than the stock windscreen (i.e. the terminals are located on the bottom rather than the top). To make sure I understood what all of the differences are, I asked ECR for an explanation. They were kind enough to provide the following detailed response which I hope will help others who might head down this path:
"The military heated screen RRC7310 works better and is much cheaper than the stock NAS screen (BTR5161 is the old part #), but the stock wiring in an NAS 110 will not support the RRC7310 screen. It draws a ton more power. You'll need to upgrade the power sources and the power source relay and fuses to be able to take the amps the military screen pulls or it will melt down your stock wiring. You'll also need to relocate the power and ground wires to the dash and not the headliner. If you are looking for a no hassle easy install... get the standard NAS 110 screen. If you want a screen that is cheaper to replace and works a little better do the upgrades to make the RRC7310 work.
I just went over all the change over issues with Mark at RN, so give him a shout and he can set you up with the parts needed. RN sold us these screens in the past as direct replacements, but as we have done a number of installs now we have found the issues that RN was not aware of. They now know of the issues and are said to be making changes to their ordering/ sales team."
"The military heated screen RRC7310 works better and is much cheaper than the stock NAS screen (BTR5161 is the old part #), but the stock wiring in an NAS 110 will not support the RRC7310 screen. It draws a ton more power. You'll need to upgrade the power sources and the power source relay and fuses to be able to take the amps the military screen pulls or it will melt down your stock wiring. You'll also need to relocate the power and ground wires to the dash and not the headliner. If you are looking for a no hassle easy install... get the standard NAS 110 screen. If you want a screen that is cheaper to replace and works a little better do the upgrades to make the RRC7310 work.
I just went over all the change over issues with Mark at RN, so give him a shout and he can set you up with the parts needed. RN sold us these screens in the past as direct replacements, but as we have done a number of installs now we have found the issues that RN was not aware of. They now know of the issues and are said to be making changes to their ordering/ sales team."