How do I install my Sirius FM Direct Adapter in my 2004 GMC Envoy?

[browneyegemini973]

I have a Sirius FM Direct Adapter and I need to install it in my 2004 GMC Envoy. I've been looking around and some people have said that the FM wire connected to the antenna is right behind the glove box. Is this right or should I just have someone install this for me? If it's easy, does anyone know where I can get a diagram at?

 

[designkidcom]

It's actually fairly simple. You'll need two GM antenna adapters. Unplug the radio antenna, and plug it into the FM direct adapter. Take the antenna lead coming off of the FM direct adapter and plug it into the radio. Then just plug in the wire coming off of the adapter into the Sirius unit. The only issue you may have is removing the factory radio.