Call the previous owner or look thru glove box & owner's manual to see
if they recorded the radio code somewhere--it won't be factory-printed in
the manual, but hopefully some thoughtful person recorded it somewhere. If
all else fails & Pontiac cannot help either, take it to a competent radio
shop and they can either unlock it or send it off to someone who can. Cost
me $50, including shipping, on a recent one that was in a used car we had
for sale. s
Motorsforum.com is a website by car enthusiasts for car enthusiasts. It is not affiliated with any of the car or spare part manufacturers or car dealers discussed here.
All logos and trade names are the property of their respective owners.