I have a 95 WITH a non Bose Am/Fm Cass.
Can I place a Bose Am/Fm Cass/CD in it.
If yes where do I get theft codes from?

 

You can put in the bose system, but its not as trivial as just replacing the head unit. You have to replace all the speakers and wiring as well. If you want better sound than the stock unit, your best path is to go aftermarket. Not only will it sound better, but it will be more reliable than the Bose systems.