3 - Remove the carbon trim by opening the glove box, and pulling towards you. Work you way towards the drivers side first, go back to the right side, and finish on the driver's side again. Watch out for the right side, since it's got a tab that tucks underneath. If it doesn't come out easily, you need to clear more of it on the left side first.
4 - Now that you have removed the trim, unscrew the screws that hold the factory stereo in place (the botton row, as shown circled in red), and pull the stereo unit towards you (the LCD screen will stay attached to the unit).
5 - 2 cables will be plugged in the back of the stereo. The fat, square one is the main harness. To unplug it, push on the little tab at the bottom, then pull, gently but firmly. The round cable with a red tip is the antenna. To remove it, same thing, pull gently but firmly. Once you have removed these cables, you will be able to competely remove the stereo unit. Here's a photo of the back. The connector circled in red is the CD changer connector, the one you will use to plug the GROM audio vehicle specific cable into.
6 - Remove the cup holder compartment, by simply pulling on it, as indicated on the following photo:
7 - Release the gear shift knob unit, by simply lifting it, as shown:
8 - This will reveal 2 screws that hold the ashtray compartment. Unscrew them as indicated, then pull the ashtray compartment towards you (it helps to stick your thumb in the cigarette lighter hole):
9 - It is now time to feed the vehicle specific cable (the one that connects the back of the stereo to the grom audio interface box) downwards, towards the ashtray compartment:
10 - You can now connect that cable to the back of the stereo (not shown, but please refer to the picture in step 5 to see which connector it should plug into) and to the interface box, and also reconnect the antenna cable and the main harness cable:
11 - Plug the iPod docking cable into the interface box, and guide the cable as shown. I used double-sided sticky velcro to maintain the interface in place (I also made sure that the ashtray unit would still fit before sticking the interface definitively)
12 - It is now time to test the installation, before closing everything up. First, re-connect the negative terminal on your car battery. Then flip the key to ACC, turn on the stereo, plug the iPod docking cable into the iPod, and enjoy what's happening! Your iPod is playing through your car factory stereo!!! :-D You will see on the first pictures that, in basic mode, you keep control over your iPod:
However, in advanced mode, the iPod is locked out:
13 - Finish the installation by feeding the cable through the circled opening in the cup holder compartment:
14 - You can now put everything back in place. You're done! Put away your tools, and admire your installation!