So a few days ago i asked about an issues i had with my stock audio system not working in my 2003 Ram 1500. It had a bad CD player and no sound was coming out of the speakers.

I ordered a remanufactured unit on e-bay and installed it just now and still nothing. The new unit seems to play fine but no sound comes out.

So it seems the problem is not in the head unit but somewhere else. Any ideas???

speakers, or shorted speaker wire will make no sound come out usually a speaker

one bad speaker will short the whole system ,found out on my cherokee after changing radio 3 times,

is there an external amplifier somewhere that may have gone bad?? Has anyone had this problem before??

The head unit seems to work fine just no sound. I have checked all the fuses and they seem good.
Stu

The wiring diagram shows if you have the 4 speaker system there is no external amp, but if you have the 7 speaker system, (3 speakers across the dash), you will have an external amp, located behind the glove box.

The diagram also shows a 25A fuse, Fuse 36, for the amp. Maybe look for that too.

After much hassle i was able to get the amp loose but i can not get it to unplug from the wiring harness at the back of the unit. Does anyone know if the amp has permanent wiring or should it unplug at the back of the unit. I tried all i could think of and i cant get the two wiring harness free from the rear where they plug in.
Thanks for any advice.
Stu

Most all the connectors have some type of sliding lock on them. I don't know exactly what connector type is on there, can you post a pic?

It must unplug, there is a bypass harness available to bypass the amp, and it just plugs into the input and output connectors on the amp. (But I've never tried to unplug mine either).
Good luck

Picture of 02-05 bypass cable, may help with connectors.

So as an update, i got the remanufactured head unit and amplifier. I installed both and still no workie. So then i bit the bullet and took the truck to a very reputable shop that does all our audio work. He worked on it for a few hours today and tested all the speakers and said they all are fine but still no sound out of the speakers. He gave me the truck back and said i should send the head unit and amp back as maybe they both are bad??

BTW, I have the seven speaker Infinity system and they are all working fine.

I'm ready to bang me head on the wall.

Do you have any old stereo laying around, you could power up for a temporary test? It might be good to have any old speaker to test the old stereo, before going ahead with this test.
You could power it up from some 12v circuit in the truck, or a battery charger.According to the Service Manual Wiring diagram, from the head
If you do, you can either pull the head unit, or get at the input wiring to the amp, whichever is easiest.
unit to the amp, the wires for the left rear speaker is DG/DB(+), and DG/OR(-), or right rear speaker is GY/OR(-), and GY/DB(+).
Take any of the speaker outputs from this old stereo and wire them, (touch them), to either pair of these wires going into the amp.
If you get sound, then it points to a bad head unit, if you don't get sound, then at the least the amp is either bad, or not getting power. Check the power wires coming into the amp.
It looks like there are 1 or 2 YL/RD wires feeding 12v to the amp, and make sure the black wires are good grounds with an ohm meter.

If you don't get sound, you can go one step further, bypass the amp by connecting the old stereo speaker output to either pair of the amp speaker outputs, Left Front Door DG/LB(-), Left Front Door DG/YL(+), or Right Front Door GY/YL(+), Right Front Door GY/LB(-). If the old stereo works you should get sound from whatever speaker you connect to.
If this doesn't make sense, please feel free to email me at btaylor_79@verizon.net.

Good Luck.

Thank you for the good advice!

My radio in my 06 ram 2500 only worked on the accessories mode. I tried everything I could think of. After doing some research online I ended up replacing the ignition switch and now all is good. I did read a lot about the reflashing of the computer to fix some radio issues. I don`t know if that it your problem or not but I thought I would mention it.

Still working on the problem with no easy fix in site. The amp i got from One Factory Radio was bad i guess so the company is trying to find me another one. I hope that they test it this time before sending it to me!