Anti theft light stays on and car starts for 3 seconds and stalls.

What is your question?

I just purchased a 1998 Cavalier and the Anti theft light is on solid and not blinking. Someone removed the Radio ( I don't know if that matters or not) Car starts for a couple seconds and then stalls. I have found a few ways to bypass the Passlock system via the Internet, Will bypassing the system really work? is this common for people to bypass these systems? and why is my light not blinking ? Thank you so very much for any info you can provide.