i just want to understand this, i'm assuming that the BAT terminal is the hot in from the battery, and the PWR terminal is the power out to the relay yes?
yep, that is how i wired it, per the instructions, i just wanted to make sure i understood what was supposed to be hot when and why.I started to respond to that but figured you wouldn't couldn't have had it because the relay is already wired in. The long PC8 lead goes to BAT, the short red to PWR and the short black to GND.
The battery side goes red + and black -.
The switching lead goes between the connectors for the rear brake switch.
You can see the color codes in the pictures. The long lead is red with a long piece of black shrink wrap for double protection as it runs right next to the ground connection.