Any electrical gods on here that can point me in the right direction?

[Cluelessmk7]

If it’s shorted I bet that could cause it.

How would I be able to tell/check?

 

[daconchslop]

You said you also had discharge pipes installed. That would require removal of the battery and tray, no? There must be a connection somewhere between those two installs that was severed/disconnected.

 

[boostnonu]

Fuse………?