BMW 82-11-0-153-367 INPUT CABLE

2005 a Mini Cooper S supercharged I don't have a knock ciliary jack so I was reading on the internet about the you know how to install one of these axillary cables a lot of people say that they install them and they don't work that they don't have the axillary button I don't have one either but from my understanding is that if you don't have a CD changer on the back of your radio and there's a slot for you to plug this wire in there now it should work should give you the option for silvery after you plug this cable so I just bought it brand new from the dealership it calls me like 35 dollars so I'm going to install it and a lot of people take this panel off and this so they can get to the radio and a whole lot just to find out it doesn't work so I'm gonna do a little something different I'm just gonna take this cover off pull it down and try to reach to the back of the radio without tak