So I picked up an Alpine head unit for the Dodge. Wired it all up, good connections, no cross wiring inthe harness adapter, checked twice. It powers up but I have no audio. Any suggestions?

sometimes the harness adapters just suck. No audio at all is odd though. Usually it'll drop a couple speakers. stupid question but have you tested it with a cd or ipod? If you're just trying the radio and there's something wrong with the antenna connection it could just cut all sound as it senses bad feed.

they do make pre-amp head units that require an amp? havent seen one in awhile. but they are out there, have your deck specs?