In Reply to: Is the Steller alarm/keyless entry any good? posted by '96 M3 lux on June 12, 2000 at 11:16:24:
There is a fair amount of perspective on this in the archives. Search on "stellar", "alarm", "autoloc", etc. Some people criticize the factory unit as being too limited in function. Some people criticize the aftermarket units as causing instability in the vehicle's electical system.
I installed the factory unit, because I thought it adequate for my locale, and because it was inexpensive and non-invasive. For perspective, the local Clifford installer said it could take up to 12 hours to do an M3, and that there was a lot of extra wiring to do. I really didn't want that invasive work done to my car's wiring.
Also, some BMW mechanics will stop work on an electical complaint, if they discover an aftermarket system has been added. However, my mechanic put it this way: "it's just a big pain to troubleshoot, and takes more time". This is understandable, as my dealer pays them by the job, not by the hour.