11-13-2017 02:14 PM
Welcome to the Best Buy forums! I'm grateful fo the opportunity to help you pick out some new speakers for your VW Jetta! Since you mentioned the 4" speakers, I'm assuming this is the premium sound option, which should be labeled "Monsoon" somewhere in that vehicle. This information isn't so much important for picking out speakers, but for the installation, there are certainly different modifications I hope to let you know about should you wish to tackle this installation yourself!
Our Autotechs are some of the best in the industry, and should be equipped to work on any vehicle which comes their way. This is certainly an installation I'd recommend having us install, if the premium sound exists. I'd be more than willing to continue to work with you to find the right speakers, in the meantime, check out some of the most common Brands which are carried in most all Best Buy locations!