Well you said you don't have voltage in the interior (Red wire) at the bulk head. I would check for voltage at the connector (opposite of end of the fusable link not at the starter relay) sounds like it fried.
Remove the connector (engine side) and check the voltage at this (of the fusable link) end.
Allen
Here's a novel idea, let's not throw a bunch of parts at the car hoping it will fix the problem and instead spend a little time diagnosing it first.
Life was a little easier when I was just a wrench.
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