Adding an aftermarket stereo head unit to a Sprinter

Aftermarket stereo cable wiring harness construction

We gave in. Even after changing out the front speakers and adding a subwoofer, the Audio 15 stereo that comes as stock in newer Sprinters was just not up to the job.

We chose to replace it with an aftermarket unit from Sony that has Apple Carplay and Android Auto so that we can use our phones to provide navigation and music through the stereo.

The swap-out wasn’t hard, but there are a couple of sticky points along the way. Read on for the details.

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Sprinter antenna replacement and repair

How about a shark fin antenna instead of the stock one?

We’ve already written about how flimsy the Sprinter’s antenna (aerial) is. We’ve repaired ours before after snapping off part of the housing when we caught the mast on something.

This time, we needed to remove the antenna from the roof to really glue it back together properly. Here’s how we did it, and some other options if you can’t make the repair work.

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Adding a subwoofer to the stock Sprinter stereo

Pioneer subwoofer close-up

The stock Sprinter stereo doesn’t have great dynamic range. It does relatively OK in the high end because it has separate tweeters, but the door speakers just aren’t big enough to reproduce low frequencies very well.

The head unit doesn’t have a dedicated subwoofer output so you have to get creative if you want to add better bass. Here’s how we did it.

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What things really void your vehicle warranty?

Mercedes Sprinter extended warranty brochure cover crop

A while back we made a joke about voiding the warranty on the van by cutting a hole in the roof. Some people took it seriously and we still get questions about what really is OK to do on a van conversion without voiding the manufacturer’s warranty.

The short answer is, it’s completely up to your dealer and Mercedes what they say they will cover or not cover, but knowing what the manufacturer warranty claims to cover and knowing what the law states about warranties is a good starting point for any warranty-based claim you might need to make.

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