Hi Bill
If you plug your iPod into your radio using the headphone jack, the volume is control by the iPod. If you connect to your radio using the dock connector at the bottom of the iPod, volume would be controlled by the radio. You will also get better sound quality if you plug into the dock...
I bought a Karcher from Lowes. I use it all the time. Works great. I can't remember the model number off the top of my head. I went to the Karcher website and I think its the K360M. 1600 psi.
Here's the link to the Karcher website:
Karcher Website
Chris
turbo & high tech performance
You migh want to check out the latest issue (october) of turbo & high tech performance. There is an article on their project GN. They install B-body spindles, tubular a-arms from hotchkis and brakes from baer.
Chris