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Trunk Grommet Location (Dension install, etc)

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I am posting this DIY information because I could not find a proper guide online after extensive searching. Many people want to install a Dension iPod/AUX/Bluetooth adapter in their frunk/trunk, and then run the cables (AUX box, iPod, etc) to the interior cabin. Now, there is an easy to access grommet to go from the battery bay to the cabin (it's right behind the driver's side corner of the battery). But how do you go from the trunk to the battery bay??
The solution is to use the large, unused rubber grommet which is behind the "carbon filter" bracket in the frunk. If you have a CD changer, it is first necessary to unscrew and remove that. Then, remove two bolts from the CD changer bracket, and rotate it up and out. Note, the plastic fasteners holding the back of the CD changer bracket in do not snap out, you have to rotate them up and out. Keep in mind, I couldn't remove the power cable from the CD changer without possibly breaking it, so I simply lifted the changer out of the way.
Note, it is a little more complicated on the AWD models, because the canister filter may obscure the grommet. However, I understand that by removing some bolts on the carbon filter, it can be moved enough to make it possible to fish a wire through the grommet.
Next, you will have exposed the L-shaped plastic bracket that holds the top of the carbon filter canister in place. It is secured by two Torx bolts. Remove these two bolts, and simply lift off the bracket. At this point, you have easy access to the grommet. You can even run the wires through the grommet and behind the carpet, out into the center section to the right of the CD changer/carbon filter.



Edited by ABQ997
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