hey all new to the forum!!!

i have a quick question,
i recently swaped motors in my toyota project. i took over the project half way through and am in the last few little things left to get it running. i went to install the starter, and got the 12 v supply hooked up, but what im wondering is where does the little wire hook up to? there is nothing there, and the starter i installed had a 3 foot chunk of wire with a terminal on it attached to the starter. the wire looked new, but i cant find where to run that wire. any info would be greatly appreciated as the mud is close and i want to spin the boggers.

thnks