Found this on a Marketplace ad and the guy won't give me any info on how it works yall know anything about how it may work?

 

Hmmm...... Thats something different. My initial thought would be that he's just using the top hole to hold his radio and the rest isn't hooked up. However, I'll try to do some researching and see what I can come up with. I have an S4 radio, but it isn't that model.

Interesting

 

So here's what I was able to find. After some review, I do think it's possible to get that cd player to work with the stock AE unit. There might be a bit of goofyness to it, but it could be able to put sound through the stock AE amp unit. The first thing I would think of doing would be to cut the multipin connector off the old cd unit section (or find a matching pigtail that has the same connector) and run that to the AE unit. There are also a couple voltage lines that go to the AE and radio units. What puzzles me on how it works is how the stock unit determines what section is active at a time. With the S5 units, the mode designation is relegated to the main cpu and cd cpu. On the S4 units here, I am not sure but I think that these additional voltage lines are switched internally to call which unit is transmitting. The other option is for main power to come in and the AE unit send power to which section wants to be active. I wouldn't know without a manual and a model to tinker on.

With that said, if you could get the AE unit to recognize the CD player as sending audio, it should play just fine. What I don't know is what happens when you try to switch to the tape or radio sections. Does the CD unit stay on, or are there some shenanigans?
Those are my thoughts for now. I think it is doable, but with plenty of troubleshooting.

 

See that's what I figured, that it operated in unison woth the oem unit but I haven't the slightest Idea. I want to run something like it though

 

Do you have a stock unit to experiment with? I think the biggest part would be figuring out the switching between modules. I think you could do it with a multimeter, or better yet, an oscilloscope.

There may be a "standby" input on newer units, although I wouldn't know. Just guessing. Something like that could be used to suspend your new CD player while allowing it to stay on. If not, you may need to figure out a solid state relay setup to turn the CD unit on and off respective to what else you do with the unit as a whole. Not sure on that. It would require knowledge of the switching.

There should be a suitable connector to solder on to your aftermarket unit's loom so that its a straight-forward plug-in setup. I found these DIN connectors. One might be suitable to handle all the audio connections to the AE unit. Then you would just have to figure out the other lines discussed. https://www.showmecables.com/by-cate...s/computer/din

 

I don't have a stock unit unfortunately my car didn't even come with a radio 😅