Ha! OK. It's easy: just go into the subforum of your choice from the main forum index, then click the Post New Thread button near the top left of the page. Type a subject/title, type your post & submit.
I like PoisonIvy's suggestion. Are you capable of pulling the radio? If so, pull it and check all the connectors, and try again. Otherwise toss it in the garbage and find yourself a replacement from the junkyard or favourite audio store.