Kenwood Deck doesn't hold Memory
can't find anything in the manual about it so i don't know what to try.....
There should be a red and a yellow wire on the Kenwood's harness.
The red wire on the Kenwood harness should connect to a switched power source in the car - something that turns on and off with the ignition. (I'm guessing that's the Yellow wire in your car from your description, but you need to determine if that's an ignition switched power source). This is the wire the Kenwood draws it's primary power from, and when the ignition is switched off, the Kenwood will automatically switch off.
The yellow wire on the Kenwood harness should be connnected to a constant 12 v source (battery) - one that doesn't get interrupted when the car gets switched off. From your description, that could be the orange wire in the car. This supplies power to the memory of the Kenwood, so when the car is switched off, it draws just enough power to retain the memory.
This information should be on page 16 of your manual, but if it's not, here's a link to the manual from Kenwood online:
http://www.kenwoodusa.com/UserFiles/...s%20Manual.pdf
Hope this helps!
Connect the red wire from the HU harness to the yellow wire in the footwell (switched).
Connect the black wire from the HU harness to the black wire in the footwell (ground).











