I have heard of many people doing that....I am thinking about doing the same and getting an aftermarket alarm, maybe one with one of those pagers. I also want keyless entry. BergWerks supposedly has a good keyless kit.
'86 420SE Euro
904 Midnight Blue, Gray Velour
Dad bought it new, now I own it.
"A Mercedes-Benz is like a fine wine, it only gets better with age."