I have a radio like this that I want to use in my truck.
I want to add a factory looking aux input jack to the front. I have a pretty good knowledge of electronics, and have done quite a few searches looking for the way it is wired, to find nothing. I am pretty sure the 1/8" aux input on the front is just soldered in the line of the outputs from the radio to the amp, but how could I find a wiring diagram of the radio to trace it out? When nothing is plugged in, does the radio play, but plugging in the 1/8 plug from your mp3 player interrupts that input and plays your music. Or does it work on a totally different circuit? Is there any other way to tap inputs inside the deck? It looks like the back has had the antenna plug desoldered on several of these factory radios with aux inputs added, so they have to come apart for the modification. Has anyone bought one of these to reverse-engineer it? What did you find out inside? They retrofit these aux jacks to all kinds of different factory radios, so it must not be too difficult... I am going to take it apart tomorrow and see what I can see. Any advice?
actually I never seeing a ford radio like that in my life. typically the aux plug is on a seperate harness from the radio harness. it's a PIA to add aux to a non aux ford radio when there are so many other alternatives
Question is why generate and use a silent WAV file?
So the overall idea with this mod is that you're faking the head unit into taking an aux input.
Playing any CD will make the head unit pipe whatever audio comes from the CD deck to the truck's speakers. We're hijacking that "whatever audio" wire and connecting the aux input to it. Without playing some CD, the head unit doesn't pay attention to that wire from the CD deck.
You could put in any regular ol' music CD and hit play, then plug in an iPod and hit play there, and both would play at the same time. I'm pretty ADHD, but not so ADHD that I think I could listen to two songs AT THE SAME TIME.
Make a CD that instead of music has silence, then the only thing you hear when you start playing your iPod is in fact your iPod.
Once again a few years have gone by before this thread was updated. Well here is the update. The thread is gold. User esm2 posted the perfect instructions and pictures for me to apply to a 2004 F150 Supercrew. Same idea - take out the Head Unit, easily remove the top cover (2 torx screws), remove the CD unit (4 torx screws) and carefully undo the ribbon cable. Turn CD unit up side down, look near the ribbon cable connector for 3 small test points on which an aux cable can be soldered. There were labels on the PCB that clearly identified the left, right and ground. Burned a 'silence' CD and good to go, sounds perfect.
I routed my cable down through the cigarette lighter with just enough slack for iPhone to sit up top.
resurrecting again. I just did this mod to a 2005 Expedition with rear DVD. It works great. I didn't have to make a blank CD. Any disk will work. The AUX will play and the noise from the cd player will mute when you plug into the aux cable. When I unplug my ipod from the auxillary cable the cd changer will resume output.
Wonderful information! I have the same radio out of a 2003 ford excursion. My CD changer had a jam and the only way I found to fix it was remove and destroy to get my cds out. The radio works fine without the cd changer in it. So I am running the radio without the cd unit installed.
I would like this aux unit soldered into my unit but the r and l inputs you soldered to are on the cd changer unit (that I have already discarded). I have the ribbon wire still dangling in the unit. Could someone trace the r and l inputs on the ribbon wire so I could solder right to the ribbon wire or main board in the unit instead? I have no labels on the main board that show r and l inputs.
I think with the cd changer unit removed applying the aux plug is a no brainer solution since my cd changer unit is void.
Any advice, suggestions, pictures or help would be greatly appreciated.
with rear DVD. It works great. I didn't have to make a blank CD. Any disk will work. The AUX will play and the noise from the cd player will mute when you plug into the aux cable. When I unplug my ipod from the auxillary cable the cd changer will resume output.
It sounds like you soldered your mod to some input leads of the aux cable that goes to the DVD player, but either way, would it be possible to show a picture of or describe where you soldered when using the rear DVD player?