Hi plan to install 2 tweeters on the front WITHOUT removing the stock 4 speakers to improve sound quality. Any good brands can recommend? Currently driving myvi SE 1.5 comes with navi system. Would there be a lot of wire cuttings and pulling where would they install the tweeter? Would it affect the navi system or void warranty? If so any other ways to improve without altering the original stock speakers? Thanks a bunch!

Oh yeah most important budget anything below 500

Any good brands to recommend? Changing the entire system is cumbersome and expensive so still just to add the tweeters will do. I don't think the new myvi 4 speakers is that bad...

Hm so meaning I'm giving up the stock 6" nagi system and need a new whole system altogether and that would probably cost a few thousand bucks?