hmm would it be possible to "split" the "green wire" and have one going to an earth and the other going to the handbrake and have it on a switch so hit the switch and it'll turn on but. turn the switch off and the handbrake will turn it on??? sound like a good idea?

To be honest 80% out there in car audio brands is crap most of amps are not even made in America and once something happens to them they are not fixable like the old school REAL american amps for exsample...Alpine is ok but i wouldnt buy it i would buy there early 90's to mid 90's stuff thats about it do you homework first before jumping in then regret you brought sh!t quality car audio Whats your aim Sound Quality or SPL??? I show you mine system when its finished some RARE top $$$ car audio Some original photos have not been recovered yet.

ever thought about precision response kevlar range? great sq can handle power and man the price is the best thing, because your not paying for a brand name... which is also money better spent on a good deck or amps