05 radio is blank

Hi, I have an 05 town & country with the CD/tape/tuner part # P05064042AB and the DVD changer. So my radio was flipping on and off for a while and finally went blank. It's not a fuse and there is still power to the radio. Nothing works. My question is, Can I just replace the tuner (part # shown above) and it will fix everything? Also, what other models would be compatible with my system, maybe a 6 disk changer, because I could really care less about a tape deck. Are there any aftermarket options? Thanks for any advice. :smile: