Window Motor compatability

Hello,

I believe my back seat passenger side window motor has finally died on me. I know GM in the past uses the same parts on several different model of cars. Does anyone know what other model of car and years are compatible with this motor for a 99 Regal GS?

Funds are limited right now so I must get the motor second had from a salvage yard. And not too many Regals are found in the yards around here.

Thanks,

Wade