My car won t start, the starter won t even make a ticking noise?

I own a Ford Explorer Sport(2-door) 01, and I recently replaced the steering column, I hooked everything up bought a newwer battery, that had been ran dead, I put the battery on charge at 10milianp for 10 minutes and then put it on 50 milliamp… Turned the key and the airbag light came on(I removed my drivers seat to replace the column and haven t put it back in), the battery light came on and the check engine light came on (and I go to start it and it won t even click, the outside lights anf the compass will show and read correctly, but the interior open door sound won t even sound and I was wondering if anybody has got a clue? Any help would be awesome thank you! Also if any one knows the wire harnesses names too that wound be awesome!

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