Stock Bose stereo out of a 98 SSE:

http://www.bonnevilleclub.com/forum/...ic.php?t=20437

I currently have the cassette and need the CD player, but don't want to loose my steering wheel controls.

The steering wheel controls are the same connector. I read through the schematics.
If the cd player unit is a UZ8 option (bose) you will need the amp as well.

Thanks for the reply. I don't know if I want the amp too. I may just go with an aftermarket head unit then. That leads me to my next question...

Does the modulater that car audio stores sell to interface between an aftermarket head unit and the OEM steering wheel controls really work? Are they reliable?

Nudge, nudge...

I haven't herad of any reliability issues with them. The aftermarket headunit needs to have a wireless IR remote though.

Is that wireless remote what interfaces with the modulator and then the modulator interfaces with the steering wheel controls?

Yep. The interface learns from the remote and then regurgitates the code to the HU via IR transmitter.