Audio upgrade retro sound systemStandard car factory sound systems are sometimes not very good. This also applies to some modern cars like the BMW series one, three and five. All of these models have terrible standard systems and we have been very successful in pleasing BMW owners with our HiFi Sound upgrade kits. We first wrote about this in our blog pages at CarAudioBlog/sound-upgrade-kits here you will find some interesting facts and in particular our post on “BMW Audio Sound Upgrade Kits in five stages” is very popular. These pages change frequently and you should check back often. If you have any vehicle that you think needs audio improvement please contact us as we love a challenge and making up fabricated panels and housings for speakers and subs is our specialty. We guarantee complete satisfaction and would love to hear from you.

Check out the latest how to: BMW stage 5 sound-upgrade step by-step.