After consulting Dr. Google it looks like Subarus can recognize up to 4 key fobs and there are lots of YouTube videos on how to do this with a keyed ignition using the lock/unlock buttons after switching the ignition on and off ten times. I didn't run across any that showed how with a push button start Subaru.My wife and I both drive subarus and consequently we each have two identical looking key fobs. It would be great if my fob would work with both my legacy and her ascent.
... our wireless devices will take over this function as newer near-field communications get refined so that they have enough range to make them practical for general use.
You are absolutely correct...I was kinda using "near field" generically around the idea of proximity which is why I didn't use the acronym. Security is important and clearly, there is going to need to be improvements around secure communication streams (strong encryption) for use of personal devices as "universal remotes".
This is what we did. The fob cover sleeves come in both leather and silicone, plus some shells, in various colors. https://www.amazon.com/s?k=subaru+fob+cover&crid=NT4YINPL27NE&sprefix=subaru+fob,aps,163&ref=nb_sb_ss_i_1_10Can't you just get a fob cover sleeve in different colors. I bought some on Amazon. My Fob is blue.