Mach amp powers all speakers?

[cswan]

I have a 97 EB with mach system. I am gonna install a double DIN. Are the stock door speakers ran through an amp as well as the rear subwoofer?
If so where is it?
I am thinking I am going to have to run new wires to all the speakers from my new head unit if the stock ones are amped. Correct?
Thanks for any help.

 

[GAINMOB]

i think 1st gens are in the rear right side of cargo with sub

 

[Canadian Expy]

The amp only pushes the sub and its beside the rear sub in passenger rear

 

[redrebel66]

The amp only pushes the sub and its beside the rear sub in passenger rear

Not sure if that is correct. When I put my DD in I had to hook up the remote turn on wire before the speakers would work so that tells me that the door speakers are amplified. It also looks like it is under the dash directly under the head unit.

When you wire your head unit hook up the blue/white wire to the same on the harness and everything should work.