Quote Originally Posted by Joe View Post
Yea I have an aftermarket amp i'm going to use. I want to hook the stock wiring up at the speakers but keep it UNHOOKED at the HU, then if I need to put the stock HU back in I can just disconnect the aftermarket amp and plug the HU in and have sound without taking the door panel off and hooking the stock wiring backup. (no factory amp btw)
You'd have to cut the speaker wires on the harness that attaches to the HU and make sure they're all covered well so they don't short circuit. Other than that, you should be fine. Just make sure they're secured well and will not short.

On that same note, if you ever decide to switch back to HU power then you'd have to do the same short protection on the speaker wire going to the amp.