Chevrolet Repair Questions? Ask a Chevy Mechanic for Answers ASAP
By far the best way to bypass it is to buy a bypass kit. Any other way you try will end up not working. These systems are well known for problems and you could start with replacing the ignition switch only to have another component fail and end up spending hundreds of dollars trying to get it fixed. Trust me, we have learned the hard way. Below is a link to a site that sells the kit. Sorry you wont be able to bypass it yourself but i have to be honest with you and save you a LOT of grief!
Please dont shoot the messenger :-)
Best wishes my friend!