Get a plastic trim removal kit. Pry it out little by little, don't force or rush the job.
For the ones on the doosr, start at the end (the smaller end)
Make sure your work table is very clean and use a heat gun.
Buy more material than you need. Everyone will mess up the first time.

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00 E39 DINAN S1 //M5 (82k miles)
06 E53 DINAN 4.8iS, born 2/18/2006 (126k miles) http://www.xoutpost.com/bmw-sav-foru...s-my-dslr.html
90 Straman Z32 TwinTurbo Convertible, (1 of 44 ever made) 5 speed, 444rwhp/451rwtq
01 360 Novitec Spider F1 (26k miles)