How to add Aux Input for SONY CDX-MP30

[cleverstar]

When I first decided to buy it, I saw a back picture and found that there is a pair of Audio In Jack. So I though it did have rear Aux Input.
But later, when I read the user manul, I found no way to select the source to be Aux Input. The only thing I found is that the Aux Input is not a stand alone Aux input. In stead, it is Bus Audio Input, used together with the Bus Control Input, for connecting an external CD/MD changer. Does it mean that I can use the Audio input only if I connect sth like CD changer to communicate with the receiver via the control BUS?
I tried to feed mere audio to the audio in without connecting BUS changer, and the unit refused to take my external audio....
Then what shall I do?

Thanks!

 

[Lud]

The OEM head unit expects to see an Alpine M-BUS device attached to the DIN port on the back. That is all it will talk to.

 

[kani]

http://www.minidisc.org/part_Sony_XA-300_Unilink_Adapter.html

This one has two line level inputs and also USB for your laptop/etc.

[This message has been edited by kani (edited 13 December 2002).]