Some questions about the CD player

[Olympian]

I removed the original CD player today and there are 4 cables connecting to the CD player. Do anyone know what are the functions of these 4 cables??

   

 

Is this bolt important ? I lost one when i pull out the CD player.

thx....

[flash22]

Blue next to the white are the standard 10+6 - looks like you may have the optional bluetooth

White connector on its own is used for things like reverse signal and audio controls - Top black plug is for the tell-tale aka idiot lights

to fit a single din you need a facia adapter, to fit the double din you need a hutch, what are not cheap and are getting harder to find used

 

 

As for the bolt, if it's 6-8 mm long it's from the radio bracket or tell-tale

 

[Olympian]

That bolt comes from here. It dropped to somewhere when i took the player off