[supramanpkc]

Ok so i bought a wiring harness for the factory wires to put in an aftermarket radio. The supra has a factory amp under the passenger seat. So i disconnected that and plugged the factory connections into the harness and into the new stereo. The radio wont power on. The eject cd button works but nothing else has power. Any ideas?

 

[DegreE_v.2.0]

check the accessory power wire for juice when you turn the key on.

 

[supramanpkc]

ill check, mean time is there a wire harness for the factory amplified systems? The one i bought said not for use with the factory amplied systems but i bypassed the amp. Did i buy the wrong harness? I looked for the one to work with the amp and found none.

 

[mrsupra89t]

check the accessory power wire for juice when you turn the key on.

Your not getting accessory power, check the radio fuse.

 

[supramanpkc]

radio fuse is fine.

 

[mrsupra89t]

Okay, try this...

Take the radio out of the dash leave it connected to the harness. Test for power on the "yellow" and "red" wires when the key is in the "ON" position. If you have power on both then the radio should be fine. If you dont have power on the "red" one which is what i suspect. Try running a line to the fuse bow to a fuse that has power in the "ON" position and connect it to the red wire on the radio harness only (dont feed back into the car)