spmorgan92

Trying to install new headunit in a 1984 dodge w250. The factory harness has the following wires: grey(constant 12v), red(ignition12v), orange(illumination),green(LF-),black(rf-). Ran my own wire to the 2 door speakers and am going to run wire for 2 rear 6x9s. Anyway, I have just the 12v wires and ground hooked into the harness and stereo harness, and door speakers wired to stereo harness, my radio turns on but has no sound. I must be missing something, anybody?

Fathershelper

Ok. Lets see. Did you run new speaker wire from the head unit all the way into the doors? Or are you splicing into the factory wiring harness?

Fathershelper

Other then that are you using a cd/ bluetooth/ tape? Or are you trying to pick up some air waves?

Fathershelper

If you have access to the wiring coming out of your head unit id check with a loose speaker to see if it is sending anything out to any or all the speaker outputs. Usually they run them in pairs of the same color. Purple and purple with stripe... green and one green with stripe you get the jest of it. Also make sure your not like faded to rear or front or left or right..... set all things to middle. Bass treble fade and balance. Make sure it doesnt have some crazy rca output setting that would prevent the headunit from sending out signsls on the speaker connections... um thats about all i can think of. Worst case your head unit is no good.

spmorgan92

only thing I can really use off the factory harness is power. The rest of the wires are green and green/black which run to the speaker on the dash. I ran my own wire from the doors to the stereo harness. I found a video on YouTube of a 84 d150 install and he has to harness from the truck. And the harness I bought came with two one for basically power the other from speakers. Unless the other one is buried somewhere I only have one factory harness from the truck which is power and one speaker and illumination. But I would think if I had power to the stereo I should have power going through each speaker wire so I could run my own.

spmorgan92

and I was just trying FM

spmorgan92

checked everything, demo mode and all. Radio can't be bad, it's brand new, literally just took it out of the box

Fathershelper

Will the radio tune to a station? Or does it just constantly search? I usually use a cd to test speaker out put. Because i dont have to hook up the ant wire. If it wont tune there wont be sound. So if it will tune. Then you should have output. Ive had bad new parts. Try the other speaker wires coming out of the head unit.

spmorgan92

Tried a cd, still nothing. so with one speaker hooked up and power into the headunit I took a test light and am getting no power from the stereo harness to the self ran speaker wire.

Fathershelper

I could be wrong cause ive never tried... but i don't think a test light is going to be the best way to test a speaker wire. Test lights are for 12 volts. D/c And the voltage on a speaker wire is going to be a/c volts. Low voltage at that. Ive tested amp out put with a meter but not head unit output. You could grab a digital volt meter and put it on a/c and see what you got. Or test for continuity from speaker wire end to begining to see if the wire is broken somewhere. If i was you id grab a known good speaker and hook to the speaker wires coming out of the head unit. Check left set , right set, front and rear. See if thats good. If so then you have a bad door speaker or a wiring issue.