Sprinter Stock Stereo Upgrade and Speaker Replacement

We replaced the speakers in the front doors, added rear 6×9 speakers and a separately powered subwoofer. We kept the stock stereo (cost, practicality, stock look) but added a 300W amp to power the new speakers. The system sounds great and the install was fairly straightforward. It required removing the stock stereo (though not removing the entire front dashboard) to get at the speaker wiring and removing the door panels to replace the front door speakers. But overall the install process was pretty straightforward and only took about 4 to 6 hours (including a lot of fidgeting, thinking, and theorizing).

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