1998 Jeep Grand Cherokee w/infinty

HELP I have been beaten by and infinity system.. Ok here's the scoop, due to company guidelines we must return the vehicle back to stock before doing any install. IE: if they cut off the factory harness we must install a new factory harness prior to installing a new radio.. Some nimrod cut off the factory infinty harness I tried for an hour to figre out the pinout of the factory harness. Then I decided to just direct wire each speaker. I found the passenger side front and the driverside rear in the drivers kick panel. I never found the other two doors. Another installer more experienced then me is working on it at our other store. Does anyone know where I can find the wiring diagram for the factory system. Or has anyone else done one of these?

Two things. The factory amp was located under the driver's side rear seat. The speakers leads should be there. If not you should be able to find the rear door leads in the B pillar.