So i'm installing an aftermarket system in my car, deck and most speakers in.
What I'm wondering is if I can find the power wire for the Bose Sub Amp and use that to power my New amp?

Does anyone know which wire it is?
And if it will be allright?

 

In a word... No, it will not be sufficient unless you are trying to burn your car down...

In almost no applications will the stock power wire be large enough gauge to handle the amp's (heat within the wire) an after market amplifier will produce ergo a fire...

What kind of amp and specs?