I used VPA#80138 Heavy Duty trunk/hatch/door release. It was about $25, bought it and installed on my '94 so long ago can't remember. Zero problems with unit, wired to use signal from third button on OEM key fob. Don't rely on ground through the door hinge, run a wire from solenoid into the cabin and attach to ground. The hinge is a ground path 99.7% of the time. For those other 0.3% you have to lean on the door first.
