ignition wire to aftermarket radio

Hello I am somewhat new and glad I found you.

I searched through as many posts as i could looking for an answer. :read:

I just bought a 1996 XJ 4.0 I6 4x4. When I bought the jeep it had a Sony aftermarket radio. It didnt work and I removed it. There was a radio harness connected and I cut the aftermarket harness to remove the Sony. I metered the wiring and found that the yellow wire was only putting out .2volts. The red wire was outputting 12v and the black ground wire was grounded properly. So I tested the Sony by twisting the red and yellow together and then connected to the battery with ground. Sony powered on. I am trying to figure out why the yellow(constant power?) is only outputting .2volts? Also I would like to know what should it be putting out? Please help:dunno: -edit: All fuses good

Yes, yellow is constant.

If you cannot trace the yellow back (could be fused in-line) then run a new yellow to the fuse block, you'll find a post marked 'batt', plug it in there.

did they cut the factory wiring and or plug out? did you check the radio and acc fuse in the fuse box?

Jeep Driver: I will try and trace the wiring once it warms up again. Just thought it was an odd voltage and figured the line was burned up.

90xj06: No. The factory harness is good thankfully. However since I didnt buy the harness adapter it is possible that they got the wrong one. They did some rigging of a few things to keep her going. I found a 98 WJ blower motor(not compatible) and a few other things rigged up. Its a project and needs around 800.00 in work to get her up to snuff.

one thing to note is there is no ground pin in the connector harness. it was a separate spade connector.

https://drive.google.com/file/d/0B6uHj9PLQVIiR0MxNHNlcGcyMms/view?usp=sharing

90xj06 said:

one thing to note is there is no ground pin in the connector harness. it was a separate spade connector.

https://drive.google.com/file/d/0B6uHj9PLQVIiR0MxNHNlcGcyMms/view?usp=sharing

Click to expand...

I did notice that! It was connected to the back of the dash and i imagine through to the firewall? Either way I have a great ground as there is no road noise through the speakers.

Thats aweome of you, btw, to include that pic!!! Thanks

I'm not always right, but I don't remember a red or yellow being in that system for the 96. earlier models yes.

Pink wire is your constant voltage, violet and (white I think) is your switched power, orange is lighting.

yellow is the standard color code, I'm assuming OP is referring to the yellow in the adapter harness

8Mud said:

I'm not always right, but I don't remember a red or yellow being in that system for the 96. earlier models yes.

Pink wire is your constant voltage, violet and (white I think) is your switched power, orange is lighting.

Click to expand...

Sorry I was talking about the adapter to the factory wire harness. Yes The Pink wire is the one I need to chase down to find out why I am only getting .2 volts. I havent had enough time in the day to do much in the way of chasing that wire down.

96teal96 said:

Sorry I was talking about the adapter to the factory wire harness. Yes The Pink wire is the one I need to chase down to find out why I am only getting .2 volts. I havent had enough time in the day to do much in the way of chasing that wire down.

Click to expand...

Ing off memory.