Whats the best option for removing the rear amps

GI Joe 97/02

Founding Member
Jul 12, 2002
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Alabama
Want to loose the weight but keep some radio capability...I listen mostly to the motor :-) But if I delete the amps out bck from the mach 460, I understand that I'll kill power to the front door speakers too...is the head unit completely un-powered or is it low powered? I just want to keep basic radio sound.
GI Joe