it doesn;t have sirius but you might be right, the previous owner something mentioned about sirius. He might have had something changed, although I do not have the MODE option...

10/14/99 production, 692 CD CHANGER I-BUS PREPARATION is installed. you should have cd changer pre-wiring installed.

Try this, I have no clue beyond that.... If you find the both cables, you're wired, now you need to figure out your changer. Perhaps some one smarter can chime in, maybe there is an adapter you need? And also keep in mind that if you have DSP, you will not have a 6 pin connector, instead you will have a coax cable. Just look behind the liner, under the insulation, cut the plastic tie that has your cables tangled together.... :dunno: I'm out.

if you have DSP, the only difference is the coax cable from the DSP amp to the CDC. you still need the 6 pin and 3 pin conector.

I BIG thank you for your help, really appreciated. It looks like the 3 pin connector was hidden underneath the side panel which unfortunately I couldn't take out but pulling harder the harness it helped. I do have the coax/DSP cable but I couldn't find the 6 pin connector.
Now, I plan to install the Blitzsafe module (DSP) for the AUX input and they claim that I need to connect only the coax cable and the 3 pin connector. Since my coax/DSP cable is already connected where the existing connection is going to go? On their site they do not mention the 6 pin connector, so I should be ok. It seems like the 6 pin is just for the non-DSP systems... I guess.