Head Unit Key Questions

Security Keys That Did Not Fit: https://www.ebay.com/itm/Stereo-Head...72.m2749.l2649
become jammed. the same design unlocking keys operate both cc and radio. so you may want to try
manipulating things, talking nice (or harsh), pressing along the lower corners of the head unit as you
push in on the keys etc.
oh...looking at the picture of the ninja throwing star keys you purchased, it should be the rounded key
pointing in the 8 o'clock position. hard to tell from the photo but the curvature looks less pronounced
than that of the key I have in my hand....an ebay purchased key which looks more like the one here
on post #8
This 1st photo taken looking up from the bottom of the pulled head unit shows how the key moves the tab - 2nd photo using a small nail file shows how you can do that (and how that can misfire

Security Keys That Did Not Fit: https://www.ebay.com/itm/Stereo-Head...72.m2749.l2649

Another option...
https://www.youtube.com/watch?v=Elpq...ature=youtu.be
Trending Topics
This is what it should look like when removed. There must be something (previous owner did) to have it in so tight.
The other option is for you to use the same keys and pull out (but dont disconnect just yet) and attempt to see what is binding the single HU into the metal frame and possibly dislodge it from above.
Edit: Im presuming you are using the keys correctly with the notched side of the blade inwards on each side.
The Best of Mercedes & AMG
The other thing you can try is to light bend last 1/2" of the key up about just less than 1/8" in in case the tip needs to better catch the release.
last thing you can do is to take $30 or so and turn it over the a audio shop - they will probably pull it in 15 sec
probe from the back but, given the location of the latch and the cage, this isn't a feasible work around.







