Noob Questions

[Jonnyswboy]

Hi, I am getting a system in my 2010 Mazda 6 which I believe has a 110A alternator.

I plan on using a dyno tested 1000w RMS amp (Skar LP-1000.1Dv2). Will I need the big 3? Also if I buy this head unit: https://www.amazon.com/Android-Eonon-Octa-Core-Applicable-2012-GA9198B-8/dp/B07F9W3594 where would I connect my remote? Would I splice it in somewhere in the included harness?

Thanks!

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[keep_hope_alive Premium Member]

Those head units have no support, so you kind of have to figure it out on your own. Instructions are pretty garbage.  It should have a remote control input which you can use with a steering wheel interface (unlikely to control it directly). You'll need to research the car for a factory wiring diagram, and likely need to pay for a few day subscription for access to an online shop manual to download schematics. 

Big 3 is always a good idea but the alt positive to battery positive is awkward and may cause issues on new cars (especially how it's mounted).  At least upgrade the two grounds: engine block to chassis and battery negative to chassis.  The power wire should be sized for the alt and is a reliable connection.  Adding to it may compromise reliability.  Ground connections are the most subjective to issues.