It looks like Gentex is supposed to have a switched circuit for the dome light line on the harness for Chrysler vehicles. However, it looks like this relay will serve as a stand in for it:
DC60S3. They've been used successfully in other mfgs vehicles with a similar two-wire system, and this model doesn't chatter the way the smaller Radio Shack version does.
But, in the event anyone here wants to install an autodimming mirror in the future, here's my harness connections on a '06-09.
___PT............................................. ..Gentex
1) Pink..........................Ignition..........Bl ack/White....Connect to 12v lighter
2) Black........................GROUND.........Black. ...........Connect to 12v lighter
3) Black/Violet................Backup..........Black/Violet...Connect to backup lamps
4 N/A
5 N/A
6) Yellow/tan...................Dome light .....Black/Yellow....Dome Light/Door
7) C104 (11) Red/Yellow....Battery..........Black/Red........12v line (Always on)
The black/violet wire for the backup lamps is supposed to be at c105, pin 2 (located on the back of the instrument cluster), but the connectors for the instrument cluster have apparently changed into 4 separate connectors on the back of the cluster with the '06-09 update.
My thanks to Zapwizard for his '06 power windows guide - it made finding the c104 12v line easy.