Does anyone know the path the wires take to get to the passenger rear speaker?

Bad connection somewhere, rear speaker won't play. I've tested the speaker and the radio output. They both work. However, I have the tan/violet, tan/black wires that go to the speaker but different color that actually go into the deck. Any help would be very appreciated.

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2002 Red KJ Limited, Off-Road Package, Trac-Loc Rear, Manik Brush Guard, PIAA Fog Lights
Boulder Bars, Rusty's 2.5" Coil Lift, JBA UCA's Gen 4.5, General Grabber AT2's 245/75/R16
Original Lost Member# 000507