I replaced my heater core this weekend, and surprisingly everything went fairly smooth. That is until I put everything back together. When I turned the ignition on everything came on as it was supposed to, except the radio. I checked the connection to the radio, the fuses in to passenger compartment and engine compartment, and on the back of the radio. The fuse in the passenger compartment was blown, I replaced it and it did not blow again. I am still not getting power to the radio. I am really stumped on this one so if anybody has any ideas please let me know.