I installed an auxiliary input jack in my car stereo awhile back and got tired of the wire just dangling loosely underneath the glove box. I also happen to have a blank switch spot (lacking rear fog lights) so I got a crazy idea.. I will do a DIY with more pics if there's enough interest.
Nice job but your pictures are upsidedown. Never mind they are right side up when you open them. Nice clean install.
Looks nice. I would be interested in a write up. I got the gist, would just be nice to see how you did it.
Sorry for the late reply, I don't have any pictures during the process, but I can describe them. First off, you need to access the back of the head unit to plug in the Aux cable. There's an in-depth write up on mini2 or something. I just googled it. While you're at it, you can remove the switch panel and unplug the wire harness so you can take it apart. There are 6 (I think) clips holding the face to the box, carefully remove them with a tiny flathead or knife. Once it is off, you can drill a hole in the empty slot. I think it's a 10mm, or a 3/8in. will work. Big enough for the threaded part to go through, but not big enough for the wire to pull out of the box. Now it gets tricky. You will need to cut a slit for the wire in the back of the box so the wire fits inside, not hanging down. I used the same drill bit and drilled several holes and then filed it smooth. My tool set is limited haha. NOTE: While you're removing the face and taking apart the switch box, be careful not to lose any of the little white things inside there, they are what make the switch hit the top and bottom buttons. Make sure they don't get crooked either, or else your switches won't work properly. You have two options to make this go more smoothly than it did for me: 1) Do everything with the wire and switch panel FIRST, then feed the wire backwards up to the back of the head unit, THEN put everything back together. 2) The opposite of 1), Start at the top, work your way down. I did mine in different phases, multiple taking aparts and putting back togethers, and I ended up with my wire through the back of the switch panel, but under the bottom brace that holds up the panel. It's not noticeable, but it bothers me only because I know it's there and I could've done it better. Next time I have a reason to take it all apart again, though, I will rewire it. When your wire is all fed through, I'll admit, it's kind of a tight fit, put everything back together in reverse order and you're set!