Starting issues

[BC10]

Hi Guys,
My truck had been starting inconsistently. Last week it stopped starting, so I figured that it might be the starter solenoid (non stock) that the previous owner had put into the truck. I replaced it and it did nothing.

Then I figured that it may be the starter relay. Replaced it, didn't work. No headlights either.

Started moving the relay around while having someone start the car and suddenly, bam!, car starts. And headlights turn on.

I have come to a dead end. The truck only starts when the relay is pushed down with an object, without it, nothing happens when I try to start her. Any ideas? Thanks!