I'd think it would be quite a PITA... My 06 rear power slider's cable broke and it was beyond difficult just getting everything dismantled. The motor/drive system has its own bracket and such. You'd have to get the glass guys to pull your manual slider out and then install the power slider... Then it would be up to you to complete the install. Maybe you'll get lucky and there will already be a bracket/mounting point for the motor and maybe even a wiring harness. I'd say take a look under the trim back there and see if it's doable. It won't be cheap upgrade I'm guessing.