transferring radio from 2004 to 2005

I've run into trouble on what I hoped would be a simple job.

The goal: to have an aux.
I have an 05 with factory radio, single disc CD player FM and AM that's all.

I got a radio out of an 04 with a cassette player and a 6 disc CD changer. I was going to use the cassette player as an AUX via one of those dummy cassette things.

Here are pics of the backs of the radio and my cars wiring. The one with blue handwriting is the new one. The other one is what works with my current car wiring.

I have no idea what my options are for making this work or getting myself a simple aux by other means. Its ok if the CD changer doesn't work, etc.

Soldering is on the table, and I can get the other harness adapters at the same scrap yard.

Lemme know what ya think thanks. Trying to solve it in a day or two before I go on a road trip.