The next step in upgarding my "sound system" to something that is listenable, is installing a factory ETR radio. I currently a shaft style radio with the mechanical presets. I'm tired of listen to Disturbed, only to have the stations change on me and start playing cuntry. :x

The three connectors swap right into the ETR radio. It's the forth plug that I have to deal with - without it, the radio isn't powering up. It has an orange and a brown wire. What do these get connected to? I guessing battery (clock) and panel lights. Which it which?

Thanks! :)