Relay Question

[djarmy2004 10+ year member]

I know i need to run a relay to run my 3 amps and one eq but i would like to know if any one has a wiring diagram or a step by step instruction for me to run a 20A relay so that i wont blow my remote wire coming off my HU. Thanks for the help.

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[jrz126 10+ year member]

Is it the regular automotive relay?

If it is, pin 30 goes to a constant +12V, pin 86 goes to ground, pin 85 goes to HU remote and Pin 87 goes to the devices you want switched.