06 c230 AMG
 

Hi so my friend gave me his c230. he had put it into a ditch and broke a front control arm. was going to cost him to much to fix and he alread has 3 other cars so I got my first mercedes.. anyway it was sitting for some time. I had it towed to my house and replaced the bumper, control arm and other little cosmetic things. charged that battery and put new terminal on "(someone cut the old ones off) stick the key in to start it. light and dash light up. no radio and when I turn to start. it gives one click from the starter and that's it. qhat could be causing this? how can I fix?