BMW’s tend to come with a pretty epic sound system already — with modern entries upgrading to a full blown infotainment system — but if you’re driving an older model, you might find yourself stuck with an out of date cassette deck or worse. 

Thankfully, you can upgrade your stereo system with a bit of knowledge and elbow grease. Here is everything you need to know about upgrading your Bimmer’s stereo system.

Assess Your Current System 

First, take a step back and figure out what soundsystem you currently have. For older models, that could mean figuring out whether that’s a dusty old cassette deck or an 8-track player in your dash. For newer models, starting in the mid-to-late 2000s, there are a number of different sound systems and speaker/subwoofer configurations that you might have to work with. 

The Base Stereo System was used in 2010 and 2011 models, especially in the E70 X5, E82 Coupe, E92 Coupe, and E90 sedan. This system did include two under seat speakers in addition to the two door and two rear speakers, but did not include any tweeters or amps.

The HIFi system appeared in a great variety of models from 2006 to 2011 and included four speakers, two under seat speakers, two 25mm tweeters and a 180W six-channel amp. 

The best of the best, at least for the 2000s and 2010s, was the Premium Sound system. It included everything from the HiFi system, as well as a number of 100mm midrange spread out throughout the vehicle. It also used fiber optic cable. 

Decide On Your Replacement

Next, before you start taking things apart, you need to decide on your replacement. Are you planning on replacing just the radio in the center console or are you doing a full rebuild, replacing the speakers, tweeters, amps and subwoofers with something a little more in line with this decade?

The state of your current sound system will also help you determine what gets replaced. The speakers might still work but after 15 or 20 years, they may also be losing significant sound quality. Take the time to test out your system and see what still works — and more importantly, what works well — to help you choose the best replacements. BMW even has you covered, with their playlist of the best songs for testing out automotive sound systems. 

Remove the Current Soundsystem

Next, before you can start installing your new system, you need to remove the stuff that’s already there. That includes the radio, and any speakers or other accessories that you’re planning to replace. 

The exact steps for removing your radio and sound system components will vary depending on the exact year, make and model of your Bimmer. Consider picking up a manual for your specific car or the equipment that you’re planning to install. 

Make sure you keep track of where each wire goes so things don’t get crossed on the install. Keep your smartphone handy and take pictures of each piece before you remove it so you can keep track of where everything is supposed to go.

When to Ask For Help

Stereo and sound system installation are a fun weekend project and installing it yourself gives you an unrivaled sense of independence and the joy of a job well done. Unfortunately, not everyone is cut out for the DIY life, especially when it comes to automotive electronics. This isn’t anything to be ashamed of. You don’t want to end up with your sound system wired to your headlights — this we know from experience — and you want something that will provide you with the best auditory experience possible. 

If you’re not 100% confident in your ability to install a stereo system or disassemble and reassemble door panels to replace speakers and subwoofers, it’s a good idea to let the professionals handle it. There are plenty of little things that can go wrong, from a dead speaker to a short-circuited wire setting your trunk on fire. Don’t be afraid to ask for help if you need it. 

Enjoy Your New Sound System

Now, all that’s left to do is jump in, hook up your phone or iPod and crank up your favorite tunes. There’s literally nothing better than being able to rock out to your favorite songs when you’re barreling down the highway. It doesn’t matter whether you’re heading to work, the grocery store, or a big party or concert — a good soundtrack makes everything better. 

Whether you’re updating your stereo yourself or letting a professional do the hard work for you, enjoy your new sound system and rock out while you make your way to your next destination.