ok this is the problem

no charging at all, no alternator output

alternator checks out good, new alternator has same problem

all wires goin to battery are good, no high resistances

but there is a 2 pin connector on the alternator, that should have battery voltage with the key on, but it doesn't, and if i place a jumper wire from the battery to this connector it starts charging..... so i'm confused.... is there a fuse or relay controlling this circuit? or is it just wired into the ECM or what?