Just got done installing my friend Tod's player into his 1999 Dodge Durango. This one has the Infinity sound system, meaning it's got a factory amplifier built-in to the car. We used the PAC OEM-1 to connect the Rio Car to the factory amp and it worked like a charm. It was ridiculously easy.
Photos and notes are
here.
One thing: We were hoping that his steering wheel controls could plug directly into the tuner module. However, when I hooked up my digital ohm-meter to the connector that I thought was his steering wheel control, it seemed to read random values as opposed to being steady values which changed with the button presses. So the direct approach is out, we're going to need to order a Soundgate interface to get his steering wheel controls working. So, soon enough we'll get that, too, and it will be perfect.