AFAIK, the 535i never came with front door speakers. There were in the kick panel. They are 4x6" models. The "is" models may have had the tweeter in the door design, but the kick panel speakers were even worse: a 4" round speaker in a 4x6" plate. The stock speakers were junk. If you want, I have a pair of coaxial speakers (built in tweeters) with graphite drivers that I would let go for $45 including shipping. They fit right in. Let me know.