Hey,

I am pretty new to this car, but I've owned a couple of Bonneville's in the past...but anyway...

I have a 2005 Grand Prix GTP CompG and I want to install my aftermarket audio equipment in the car. I want to rentain on the functions the car came with. I have the Monsoon system, with On-Star.

Which factory integration module should I get? All the reviews I have read on the Metra one suggested in the FAQ on this site say it is crap. I am installing a head unit and a sub/amp. I am not touching any of the speakers yet.

Also, what is the difficulty of the install with all of these data adapters? I have done many old school installs with harnesses, but nothing with this stuff.

Thanks for the help!