beams owner in 91 mr2 project

hi , i am from the caribbean, names anthony.
just fell in love with toyota, own a ea90 nutch back, had in a 20 valve sliver top, changed it to a 92 levin supercharge, running it still.
now i have a new project, got a mr2 1991 model with a blown block (3sge) .
bought a beams ,black top from a caldina, using back the gear box from the 3sge(5 foward) got the ecu ,but i have a little problem, did not get the main jack to power up the ecu from the dash. can any one help me need to try out the engin to get the power from my vvti.( [email protected])