pretty sure i killed my wifes radio!

[tinkbeetle04]

my wife has an 04 nb convertible with monsoon..i was putting a FM modulator for her sirius radio on, when i pulled the head unit out i noticed the antenna connection was not what i had so i put the radio back in and nothing..no power. i called crutchfield and the guy i talked to said i blew the fuse on the unit b/c i didnt pull the neg battery cable. so i pulled the neg cable and checked every fuse and all seemed fine. i pulled the head unit out again and checked its fuse, it was fine too..i noticed one the harness connections on the HU was off. the black one on the left bottom of the unit. it wont go in at all. i dont recall it even being connected! but it looks like it should have been. but it wont fit..none of the pins on the HU are bent, and the connector from the harness seems ok..any ideas before i break down and send it to the dealer?
is it locked from the security system?? if so without power how do i fix it?
any help would be really appreciated
thanks
Chad

[from Margaritaville...]

Oh! This sounds expensive. And just in time for the holidays. No tunes to boot? Super Bowl Sunday can't possibly come fast enough...

[Toad]

I'm pretty sure ht black plug is our power connections. It should plug right in under the brown one of hte same shape but with the tab on the side in a differnt location.

[tinkbeetle04]

the connector wont fit back in though, i gave up out of frustration today..maybe ill look again tomorrow