the two small wires are your left and right wires the larger wire is you ground. This hack was performed on an Infiniti G35 but is similar to many car audio systems. For connecting to the CD changer, the Left, right and ground channels are clearly marked. The 3.5mm plug has left, right and ground wires that connect to the respective wires soldered earlier. If you are looking to install an aux cable into your car, FIRST pull your radio out and make sure there is an "aux Input" in the back of you radio. Did you make this project? Cheap HDMI Cables, Buy Quality Consumer Electronics Directly from China Suppliers:DIY Car AUX In Input Female Jack Interface Cable Adapter For Mazda 3 6 MX 5 RX8 Enjoy Free Shipping Worldwide! some newer cars may have a female headphone input and you will need 2 male headphone ports soldered together. in many cases you will need RCA jacks to a 3.5 mm headphone jack. Design and 3D Print Your Own Phone Case (in Fusion 360), https://www.cherokeeforum.com/how-tos/a/jeep-grand-cherokee-1999-2004-how-to-program-key-fob-397759. in many cases you will need RCA jacks to a 3.5 mm headphone jack. So i ended up hacking my old sony car stereo to add an aux input since cd’s are so 1999 and pretty damn annoying (and buying a new one for aux only is just silly) Its actually pretty simple. 3 years ago. Remove all the screws from the stereo casing, including the 6 CD changer and the cassette deck. An auxiliary jack is a device that uses cables to connect an MP3 player to a car audio system via the headphone connection. Begin to remove all the screws to take apart the headunit. now wrap the soldered wires with electrical tape (AFTER THEY'RE GIVEN TIME TO COOL.) The cassette player method didn’t work directly due to the jack detection on my phone not detecting headphones were plugged in, though I did hear a static pop when I plugged it in so I’m sure it’ll work with other MP3 players. The interface will have a stereo input connection for your music and will connect to your factory radio via the satellite radio tuner interface port. Reply Add an Auxiliary (MP3/Ipod) Input to Your Car's Stock Radio: So you've got this great little MP3 player or Ipod, but your old-school car only has a CD changer? to make soldering or wire nutting the wires together, you should twist the bare wire between your pointer finger and your thumb. Here is the completed “harness" I used for testing. The first thing is to remove the radio from the dash. Connected to a pair of home speakers, it was truly amazing the quality I got from them. The heart of this aux hack is a 3.5mm cable which you canget from the dollar store for $1. Reply the smaller wire is the sound wire depending the if it was the R,C,or A. the larger wire is you ground, which is responsible for how clear your music will play. This radio has three main inputs, the radio, the cassette and CD. I will explain how to do both of these fairly simple solder jobs. For connecting through the radio lines, the right, left and ground channels are clearly marked under the tuner. You’ll need a blank cassette tape to trick the stereo into thinking there’s a cassette in the drive and read from that source. Aux-to-Aux Car stereo aux input 2 meter (6 feet) 3.5mm to 3.5mm Auxiliary Cable, Great for Smartphone, iPod, MP3 headphone jack connection to In stock $6.99 (28.61% off) Then disconnect the radio. The side panel screw on either side is hidden behind the glove box and driver’s footwell panel. Flip the board over and you can see the connector solder points that we are going to wire a 3.5mm headphone plug to. 3b) Wire nuts if you are not experienced with a soldering iron. The console lid, radio side trims, driver’s lower foot-well cover (under the steering wheel) glove-box and clock need to be removed to get at the radio screws. I decided to leverage the CD player in my car… 2) RCA, when you cut open the RCA there will the a smaller wire inside a larger wire. Snip off as little wire as possible to accommodate errors, strip all of the wires and separate them individually, you want about an 8th inch of exposed wire. Here is the completed “harness" I used for testing. You can also get a female jack and bolt it to an interior trim panel, such as the radio face or center console. Several companies manufacture auxiliary input interfaces that mimic the presence of an optional satellite radio tuner module. Did you make this project? Just press the Sat button to activate the input. It will also work with a CD that has music on it, though it could mess up the audio system when you disconnect your phone, so a silent CD is recommended. That is a great trick. I have done this myself several times to make one kind of repair or another. Remove the GPS or storage cubby and separate the radio face. In fact, the ground is common for all three inputs. This video will easily show you how to program a Pioneer brand car stereo Aux Input from an RCA output to and auxilary input. Plug everything into the dash and try out each input. the cd player inside the stereo should have a circuit board with markings for right channel (rch) left channel (lch) and ground (gnd) just get a 3.5mm audio wire and solder it in there… 1) Two cables with your desired size headphone jack or RCA cable. The heart of this aux hack is a 3.5mm cable which you can get from the dollar store for $1. On this radio, it’s a direct connection since they are all analog inputs. Sure you can get an FM modulator, but they don't work so great and are notorious for poor sound quality. These are becoming increasingly common in newer vehicles, and generally … Adding a 3.5mm jack is the cheapest way to get a clear audio signal from your phone to your car’s stereo, without having to worry about distortion or interference with a cassette adapter or FM transmitter, aftermarket radio wiring, or expensive MP3 adapters. You want to try to keep the left and the rights separate and all the grounds must be connected. … the ground wire is what makes your sound come out clearly and crisp. I soldered wires to all three inputs and routed them out of the case to test inside the car. The need for such a hack grew out of my frustration with connecting portable music players to my cheap car … If you are looking to install an aux cable into your car, FIRST pull your radio out and make sure there is an "aux Input" in the back of you radio. some newer cars may have a female headphone input and you will need 2 male headphone ports soldered together. Share it with us! Simply solder to a 3.5mm jack, and the audio from your device will simply override the audio from the radio tuner: For the cassette deck, the left, right and ground are clearly marked. I will explain how to do both of these fairly simple solder jobs. If you have navigation, its heavy. I'd use heat shrink rather than tape as it won't turn sticky over time and looks neater. I changed ECU now it don't matter what I do it will not run over 2 second.. what can I buy or rent, whatever .. I just need to get this jeep running again.. Share it with us! plug in the cable and start playing your favorite songs. Probably a good thing to load the input circuit with about 1K Ohm/channel, too.I made this same type of modification to several 2000 series Delcos in the 80s. The sound will still be clearer than using a regular cassette adapter because it doesn’t have to go through mechanical conversion to the magnetic tape stripe. In this Instructable I will walk you through how to design and create a perfectly usable aux cable for any mp3 device, which in my case ill be installing into my car. apply a small amount of solder the exposed sections of wires, don't forget about the ground wires. The CD player method worked the best, followed by the radio. This page shows you how to hack a cheap car stereo with the PT2313L audio processor integrated circuit to be able to accept an auxiliary input, say from an MP3 player. 9 months ago, Tri these yet?https://www.cherokeeforum.com/how-tos/a/jeep-grand-cherokee-1999-2004-how-to-program-key-fob-397759. I soldered wires to all three inputs and routed them out of the case to test inside the car. Here's how to hack an auxiliary input to your car’s stereo: https://www.youtube.com/watch?v=ON_JRcDdbKo. All good, but it is a mistake to exclude a DPDT switch or its electronic equivalent to isolate different sources from one another. The CD drive will require a CD with a silent CD track burnt on it to play in order to trick the headunit into reading from the CD drive. Furthermore, the head from the cassette player can be disconnected to rid of the hiss noise that the blank tape may create. to properly solder and to ensure a good connection, twist the wires together with your thumb and pointer finger. 1) Salvaged headphone, there will be two smaller wires within a larger wire.