The existing P.T.C thermistor out of the cap on the end of the motor that I tried to soldier my wires to delaminated, not to mention difficult stuffing it all back into the cap, and getting it back on. I tossed the cap! I bought a 194 bulb socket - O'Reilly Auto Parts # CTI 85814 $3.99- . I cut the modular plug off at the van's harness and noted which wire ran directly to the 12 volt motor, as opposed to the thermistor, slipped a .187"solder-less connector on the wire (and put a drop of solder on it anyway) and connected that to that tab on the motor. The other wire from the car harness goes to one end of the bulb socket and the other wire from the bulb socket goes to the other tab on the motor. Next through process of elimination, I ended up using an 11 watt 12 volt landscaping bulbs from Lowe's,- 12 VOLT LV55 WEDGE BASE-which plugged into the O'Reilly 194 socket. I started with the 194LL that you suggested, but the windows wouldn't open. After trying a 7 watt, I ended up with the 11 watt. THANK YOU!