I have a new (used) wiper motor to install in my 99 Tacoma. Removing the old motor is a snap, of course, but how in the world do you getthe linkage from the new motor to the blades put back together? There is a very small hole in the firewall to work through, and I can get the female part of the "ball and socket" type joint line up with the hole by manually moving the wipers, but I can't hang on to this piece and install the motor at the same time. If I let go of the internal part, it just drops out of sight. I tried removing the plastic grate that is between the hood and windshield, assuming this would give me a way to access the wiper parts from the backside, but it does not. Any help would be greatly appreciated.