And for future reference, if you have the Empeg installed in your new car, lay down some rules for the installer if it isn't you:

1. reversability
2. some documentation (a basic schematic showing what they did)

I did this with my Jeep. I could pull out my empeg now and put back the stock stereo with zero splicing as my connections were all made from adapter cables I put together. So the stock wiring harness is still in the car untouched.

I love my Empeg.

-Ben