What did you do to make the subwoofer work? I used the metraonline 70-7863 kit and plugged "AUX OUT" into the harness subwoofer. No detectable sound from the subwoofer.Metra 70-7863 Amplifier Retention Wire Harness for 2003-2011 Honda Element
Link to the wire harness:
Amazon.com: Metra 70-7863 Amplifier Retention Wire Harness for 2003-2011 Honda Element: Car Electronics
My tweeters work just fine with this stereo. The EX has a separate amp tucked inside the dash that feeds the tweeters and sub.
Incidentally, I drilled 4 holes in the inside lip of the factory bezel. Wouldn't be able to see the mod if the factory radio were put back in. And I used the factory screws to hold the new unit onto the bezel, just kind of centered it. (see pics)
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