Head Unit

[Nash04]

While installing my Neo Ipod adapter, noticed that there was an empty space in the center of the HU like if at one time there was a cassette player there and under it, there's a black din plug connector, have anyone seen this before and what's the purpose of either one.

Thanks

 

[patmaz]

for the head-unit with the 6 cd changer,the unit is the same,but they had the cd changer to it....