Agree. A 12v source and some speakers on the work bench are invaluable.

 

It'll be tested next week when I'm finally home and can pull my battery out of the boat to do the testing.

 

You should have bought the kenwood!

 

Bench tested the IVA-W200 tonight aaaaaaaand it works great on all speakers.

 

Clearly a wiring fault then. Probably snagged a sharp edge with one while pulling them.

 

Yep, I bet thats it!

 

That would cause..
...with the factory unit, both right side speakers not to work?
...with the W200, none of the speakers to work?

 

A short will have different syptoms depending on the HU. I would reground and re check your power cable to the batt.

 

Been there, done that several times. Ran my own wiring directly to the batt before too.

 

since you said it worked on the bench, and you said that you HAVE ALREADY ran new wires...do you think that the bracket (if there is one, I don't own or have worked on a superduty truck) is slightly bent to ground out the wires when everything is installed?


i personally think that some other electronic device is emitting an interfering signal, like mentioned before, a brake controller. it is just an example, i know you said all you have is a factory wired brake setup.

 

What bracket???

I do think that it is getting interference, however, not from the brake controller or CB. After a bit of research, it seems that the first owner of the truck had a snowplow installed. Let's just say that there is some "creative" wiring going on under the dash...
Also, tomorrow I am going to try swapping the speakers around in the truck just to make sure that that isn't the problem. I do know for a fact that the right front speaker has gotten wet, I think I have a bad seal on the window.

 

I still think its a bad speaker... So today I'm going to drag my boat battery out to my truck and run power to the headunit from that and hook it up to the speakers. If it plays on all speakers, then I know it is a ground problem. If it doesn't play on all speakers, then I know it is a speaker problem.

 

You already know that the HU and speakers are good. Why are you going backward? Interference from other electronics? That would cause buzzing or static, not a dead speaker. It sounds like a short to me. Rip out the "creative wiring" under your dash. Inspect the rest of it and find the short. A short could cause the problems you're seeing. The stock unit and the alpine I'm sure are wired differently internally. That's most likely why your symptoms change when you change HU's. Do you own a multimeter? If not, go to radioshack and pick up one of their cheap analog meters for $5 and start checking your wiring.

 

Why?

 

Simple... I'm getting NO feedback on my CB and sub. Not a hair. I know from experience that if there is a bad ground in the system, those two would pick it up. My problem at the moment, I believe, is that I have a bad seal on the right front window. My right front speaker has been wet before when I removed it. I'm starting to think that this is a moisture problem... when the speaker is wet, it causes the system to short out. Yesterday when it was dry out, the speakers worked great. I'm sure if I were to try it again today (snow) it wouldn't work.