Hey Y'all-

I just got my Mk2 (RioCar?) and had it professionaly installed. The only issue is that I have to crank it up to 0.0 db to get any serious volume out of it. On the highway it isn't very loud at all. I have a Jeep Grand Cherokee with a stock Infinity amp under the rear seat. I figured the Amp would be plenty powerful to drive the speakers, but I'm a little befuddled. Does anyone know anything about the stock Chrysler sound systems? Do I need to put in a preamp of some sort?

Thoughts?

(To the managers of this site: Kudos! This is great!)

Thanks in advance folks!

Mark.