I get what you are saying. Obviously a ran a new home run for my amp, but I agree with those saying its easier to cleanly tap into an existing switched source like the radio. In my case, I know the radio circuit has plenty of available capacity since I've moved to an external amplifier.
I disagree with those using the maplight for a radar detector. Run switched power.
Antihero
Putting AMS garbage, and $500 ebay wheels on a Z is like dressing a Victorias Secret model in a Walmart dress and Payless shoes. You're embarrassing yourself.