if you're going to run your own amps and speakers AND HU. you can remove it all and ignore it. iirc
You're going to run your own wires from HU -> amp, from amp to speaker anyway.
as for steering wheel controls i think that's up to you to choose a head unit and steering wheel control adapter for it
as for remote lead to turn on the amps, doesn't every aftermarket headunit have a remote output?
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