I would definitely recommend simon teh as well. He does very very good work and is extremely passionate about car audio and audio in general..
I read about Simon Teh in the papers awhile back and i was then looking for some audio install into my E60 and i checked out KK Lau's work and JS(Jacky's) work in Sunway as well...
Then i read about Simon Teh so i decided to pay him a visit..I must admit, the idea of using brands unheard before is abit daunting initially as people like KK Lau and JS will do nothing but push big big brands to you (think soundstream human amps, alpine head units etc) and simon teh also takes a very old school approach to staging.
Relying on the glass and the acoustics and his own ears to fine tune the system as opposed to time correction of the head unit etc etc.
Nevertheless, after spending 45 minutes in simon's car, i was sold. I dragged along my brother in law who also drives an E60 to have a listen the next time and the following day, both our E60's went in to get what Simon has in his car..
Up till today, Simon has been fine-tuning the system, over the last 5 or 6 times for both of us FREE.
Great guy who is really passionate about his mewseek!