As I said, you'd still be running silent.
GM "In front you see Hobbes."
Player "I automatically see the Device Icon of his cybereyes, right"?
GM "Normally yes, but no - you don't see the device icon of his cybereyes. This might be because he don't have any cybereyes, because his cybereyes are wireless OFF or because he is trying to hide the Matrix Device Icon."
Player "I am trying to spot his cybereyes Device Icon with Matrix Perception"
GM "You fail to spot the Device Icon of his cybereyes. You can use Trying Again for a negative dice pool modifier of 2 dice if you want" -or- "When you successfully spot the Device Icon of his cybereyes you also notice that the actual Icon look like an Olfactory Booster rather than a pair of cybereyes."
And if you can tell what an Icon while wrapper is running, what is the point of Wrapper?
You use Change Icon (or Wrapper + Change Icon) to impress or fool people that doesn't take the time to actually look at your icon, but if you for example physically look at a RFID-tag and see that it have a device icon of a SMG you will probably suspect that its not legit.
GM "There are three GMC Banshee Icons approaching at low altitude."
Player "w00t?"
GM "Roll normal Perception"
GM "You notice that they move very slow... not at all like a lightning-fast aircraft. You also don't hear the sound of a supersonic vehicle. When you look towards where they should be on the sky you also don't see any iconic t-birds...."
Player "I spend a Simple Action to verify that the middle of the three Icons really is a GMC Banshee"
GM "Roll Matrix Perception"
GM "The Icon you look at in detail really does look like a genuine GMC Banshee Device Icon, but it seem as it actually belong to a MCT Fly-Spy drone. The GMC Banshee thing is probably the result of a Change Icon action, possible in combination with a wrapper cyberprogram running."
Player "Hobbes! Only Hobbes would pull something like that....! I'm gonna kill him if he does that again...."
Player "I am in hot-sim VR looking at what devices Hobbes have running wireless and not silent".
GM "Since he is within 100 meters of your cyberdeck you automatically see several device icons without taking a matrix perception test to look more closely; a Chipjack, Olfactory Booster, Skill Wires, Cyberears, Earbuds, Concealable holster, Cybereyes, Wired Reflexes, Reaction Enhancer, Ingram Smartgun, Datajack, Fingertip Monowhip"
Player "He is not trying to hide his SMG icon... strange... OK, I am forcing my mark on the SMG icon!"
GM "Roll Brute Force"
Player "I am spending a free action to eject the clip out of the SMG"
GM "This is not an action this device icon can perform"
Player "....... Is this really a wireless firearm i just marked?"
GM "Roll Matrix Perception"
GM "The Icon does indeed look like it is a genuine Ingram Smartgun Device Icon, but it actually belong to a wireless RFID tag."
Player "grr.... Guess that explains why he didn't run them silent!"
Player "I am trying to spot the device icon of his Olfactory Booster"
GM "Roll Matrix Perception"
GM "You fail to see his Olfactory Booster Device Icon. Maybe he doesn't have one to begin with, maybe it is running wireless OFF or maybe you just failed to spot it. You can use Trying Again for a negative dice pool modifier of 2 dice if you want."