WIRING DIAGRAM FOR 1988 TOYOTA PICKUP CAR STEREO

You can get them from an auto parts store such as auto zone, pep boys, etc

Here's a link on toyota stereo wiring.http://www.modifiedlife.com/car-stereo-radio-wiring-diagram-1998-toyota-camry/

1988 Ford Thunderbird Car Stereo Wiring Diagram

Source: http://www.modifiedlife.com/1988-ford-thunderbird-car-stereo-wiring-diagram/

Whether your an expert Toyota Camry mobile electronics installer, Toyota Camry fanatic, or a novice Toyota Camry enthusiast with a 1994 Toyota Camry, a car stereo wiring diagram can save yourself a lot of time. Automotive wiring in a 1994 Toyota Camry vehicles are becoming increasing more difficult to identify due to the installation of more advanced factory oem electronics.
One of the most time consuming tasks with installing an after market car stereo, car radio, satellite radio, xm radio, car speakers, tweeters, car subwoofer, crossovers, audio equalizer, car amplifier, mobile amp, car amplifier, mp3 player, ipod or any car audio electronics is identifying the correct color car audio wires for your 1994 Toyota Camry.
The Modified Life staff has taken all its Toyota Camry car radio wiring diagrams, Toyota Camry car audio wiring diagrams, Toyota Camry car stereo wiring diagrams, Toyota Camry car radio wiring schematics, Toyota Camry car wiring diagrams and cataloged them online for use by our visitors for free. Our automotive wiring diagrams allow you to enjoy your new mobile electronics rather than spend countless hours trying to figure out which wires goes to which 1994 Toyota Camry part or component.

http://www.ncttora.com/fsm/87-4Runner/toyota_truck_and_4runner_88.pdf
You can download the entire FSM (Factory Service Manual) in PDF format at the above link. It has the diagram you require.

what part of wiring diagram ? and i might be able to email it to ya

1985 Chevrolet S10 Pickup Truck Car Stereo Wiring Diagram
Car Radio Battery Constant 12v+ Wire: Orange
Car Radio Accessory Switched 12v+ Wire: Yellow
Car Radio Ground Wire: Black
Car Radio Illumination Wire: Gray
Car Stereo Dimmer Wire: Brown
Car Stereo Antenna Trigger Wire: N/A
Car Stereo Amp Trigger Wire: N/A
Car Stereo Amplifier Location: N/A
Car Audio Front Speakers Size: 4′ x 6′
Car Audio Front Speakers Location: Dash
Left Front Speaker Positive Wire (+): Tan
Left Front Speaker Negative Wire (-): Gray
Right Front Speaker Positive Wire (+): Light Green
Right Front Speaker Negative Wire (-): Dark Green
Car Audio Rear Speakers Size: 4′ x 10′
Car Audio Rear Speakers Location: Rear Corners
Left Rear Speaker Positive Wire (+): Brown
Left Rear Speaker Negative Wire (-): Yellow
Right Rear Speaker Positive Wire (+): Dark Blue
Right Rear Speaker Negative Wire (-): Light Blue

Clck here for the correct wire colors for Toyota. http://www.autotoys.com/New_Tech/Wire_codes/TOYOTA_WIRE_COLORS/toyota_wire_colors.htm

http://www.modifiedlife.com/1986-toyota-pickup-car-radio-wire-color-codes/