6 Disc changer ... wiring instruction???

[lockylocke]

I'm upgrading my 95 3kgt's radio to a factory 6 disc buying from ebay.

There are a few extra plugs and wires which are really confusing me (i'm not good at it). I uploaded the head unit pic of the Radio ... so if anyone has any idea, please show me where they should go.

http://i21.ebayimg.com/03/i/01/a0/5e/1a_1_s.JPG

The big plug in the middle......is The main harness
The far left circle ..........is the antena
The second black whole from far right...is the connector to 6 disc.

What are the other 2?...and where should they go??
Last but not least...where would you mount your 6 disc changer...so that....those Audio Car Theft WIll not find them???... thanks for helping