engine wiring help

wow!! that makes things ALLOT easier to understand. so its cool to run all that power for the stereo through the sta relay? as far as the connectors, the guy i have making it says he has all new plugs and terminals so thats not an issue. to be honest i wanted to run the stock gauges if i could, but have been putting off the wiring. also as mentioned in the previous post im putting the battery in the trunk and was debating doing the start em up relay so the + from the battery isnt powered all the time considering its going through the interior. what do think about this will all the stuff i got going on?

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I think you need to have a much clearer understanding of automotive wiring, or find someone that does before you burn up the car.

That aside, one needs to diagram out the modifications to the electrical system, make a few calculations, properly size conductors, make provisions for over current protection (fuses), and then install it.

Keep in mind the bulkhead connector when new could not handle much amperage for any length of time; perhaps around 25 amps continuous. Any continuous high amp loads have to bypass the bulkhead connector, and be feed from a secondary power distribution point added to the factory electrical system. Also a charging circuit bypass, along with a higher capacity alternator will need to be installed to handle the increased load of a 200 amp sound system.