Installing radio 2003 Jeep Grand Cherokee that came with factory amp.bought wire-harness no wires have been cut Hook up radio no sound there is a 8 pin plug not connected went back factory radio.

2004 Jeep Grand Cherokee ' Stereo Wiring Diagram

was this a hack job?> cutting wires. (cutting harness wires?)
or did you use those nice install kits with the connector pig tails
that find the factory harness connector.
if you messed it up, only the FSM can save you now.
read the schematics.
see ZJ
here
http://www.jeep4x4center.com/knowledge-base/index.htm?utm_source=cj#service

no electrical tape allowed (heat shrink)
no wire nuts (horror to max on cars)
no cannibal splices. (the cut in to factor wires, nasty they are)
or it can be bad.

Hope this helps:- Factory Disarm Purple/Yellow (-) Driver's Kick Panel Black Connector at ECM -slice into this wire, & wire it to ground, this disables the alarm.
Cavity/Fuse Diagram (1996 Grand Cherokee, passenger side kick plate to find, Owner's Manual pgs 205-206): 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22

Row 1: 1-6 (left to right) Row 2: 7-12 Row 3: 13-18 Row 4: 19-22
1996 Jeep Grand Cherokee Fuse Panel (Passenger Side kick panel) Reply

CAVITY FUSE DESCRIPTION 1 -10 amp (RED) Radio 2 -15 amp (Lt Blue) Cigarette Lighter 3 -10 amp (RED) Rear Washer Switch, Body Controller 4 -10 amp (RED) Airbag 5 -10 amp (RED) Lamp Out Module, Overdrive Switch, OBD II 6 -15 amp (Lt Blue) Vehicle Information Center/Graphic Display Module Park & Side Lamps, Overhead Console Lighted Visor, Automatic Dimming Mirror 7 -20 amp (Yellow) Body Amp, Cluster, Body Controller 8 -20 amp (Yellow) Rear Wiper Motor, Flipper Glass Solenoid, Cargo Lamp, Trailer Tow 9 -15 amp (Lt Blue) Brake Switch 10- 10 amp (RED) Rear Window Defroster 11 -10 amp (RED) ABS Module 12 -10 amp (RED) Heater-Ventilation-A/C Control & Recirculation Motor 13 -15 amp (Lt Blue) Hazard Switch, Turn Signal Switch 14 -15 amp (Lt Blue) Spare 15 -15 amp (Lt Blue) Spare 16 -10 amp (RED) Right & Left Courtesy Lamp, Glove Box Lamp, Halo Lamp Cargo Lamp, Underhood Lamp, Dome/Read Lamp Right & Left Visor, Automatic Dimming Mirror 17 -15 amp (Lt Blue) Radio Illumination, Tail Lamp, Graphic Display Module, Park & Side Lamps, Headlamp Switch, Body Controller 18 -20 amp (Yellow) Spare 19 -15 amp (Lt Blue) Passing Light 20 -15 amp (Lt Blue) Radio, Heater-Ventilation-A/C, Vehicle Information Center 21 -15 amp (Lt Blue) Power Outlet 22 -10 amp (Blue) Airbag Module -------------------------------------------------------------------------------------
1996 Jeep Grand Cherokee Alarm, Remote Starter, Keyless Entry Wiring Information Constant 12V+ Pink/Black Ignition Switch Harness Starter Yellow Ignition Switch Harness Ignition Dark Blue/Gray Ignition Switch Harness Ignition 2 Red/Black Ignition Switch Harness (for AC) Accessory Black/Orange Ignition Switch Harness Tach Gray/White Coil Brake Switch White/Tan Brake Switch Trunk Pin n/a Works with Dome Light Parking Lights Blue/Red (+) Left of Steering Column or Light Switch Head Lamp Tan/Black Light Switch Factory Disarm Purple/Yellow (-) Driver's Kick Panel Black Connector at ECM -slice into this wire, & wire it to ground, this disables the alarm. Door Trigger Yellow (-) Driver's Kick Panel see notes Door Lock 5/Wire in Driver's Inside Driver's Door Orange/Purple Lock Pink/Black Unlock Door Unlock and Passenger's Doors Inside Passenger's Door Black/White L Pink/Black Unlock Horn Wire Gray/Orange (-) Steering Column Windows Up LF=Light Blue, RF=Brown/White, LR=Blue/White, RR=Gray/Black Doors Windows Down LF=White, RF=Purple/White, LR=Red/Black, RR=Green/White
• Cruise Control Information • Stereo Information • View all Jeep Vehicles

in my 96 jeep its under the rear driver side seat but when i put my after market radio in i just had to hook the remote wire from the radio to the amp power wire and it works great

You will need to trace the speaker wires to see if they are disconnected anywhere in the harness. are you sure the speakers are OK? Fopr wire locations on the radio try going to: http://www.installdr.com/ They list the pin locations and wore coding you will need.
Good luck

From the factory wiring there will be a red/white wire with a constant 12v and an ignition switched 12v wire which is red/gray. Hook those to corresponding wires on the aftermarket wiring harness. You may have the constant and switched wires backwards. Also the antenna trigger wire (usually blue on aftermarket radios) should be hooked up to the green/red wire on the factory harness.

For a complete wiring schematic check out www.the12volt.com

if u have a factory amp u need to hook it to the remote wire or power antt

sell

Check your radio fuse.. if it is ok, and the radio does turn on and you have no sound, chances are you either popped your "amp" fuse or worse, popped your factory amp.. let me know what exactly is or isn't working right now.. but make sure you check your fuses...

I hope this helps there was only a grand wagoneer listed for 1991