I am looking to find installation instructions and
materials/accessories to install a Sirius Satellite radio (Starbase
Model) via the AUX input (din connector) on the Factory installed
Rockford Fosgate Audio system,the 2006 Mitsubishi eclipse gt upgrade
package is equipped with. From my understading I will need an
aftermarket auxillary adapter, such as P.I.E. From my short research,
I have determined that Mistubishi is not providing support on this
issue, along with Rockford Fosgate.

Please provide me with some or all of the below items, bonus awarded for all:

- A link to an online site for purchase of the equipment
- Photos or links to the equipment/adapter in use
- Testimonials on installation of this type for the 2006 eclipse gt

Do not provide:

- Information on Aftermarket Audio Systems
- Information on using an FM based Modulation Solution

I just got a 2006 RSX and have the same problem.  FM modulation sucks
and I dont need a whole new head unit.  Ive looked around and the
closest I've found is these guys.  Precision Interface Electronics. 
They make what you want but maybe not in the "sirius to a 2006
eclipse" version.  They have links to 3 sites that sell their stuff so
check it out they might have what your looking for.