Aux IN Music CD Interface Adapter Audio Jack Cable Lead Compatible with Samsung Galaxy, HTC ONE, Huawei, Sony Xperia Lumia, LG Phone, MP3 Player to Mazda 6, 3, 5, 2, MX5, RX8, M6, M3, Besturn B70

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Quality wise, it's great, matches CDs, saying that it's apple music on my phone (compressed) vs ripped CD's.

The final result is a lot more elegant, however, with the unit able to switch over to auxiliary input at the touch of a button. You can splice in to the wires going into those pins either by cutting in and soldering, or use non-solder tap connectors. I noticed there are two plugs in the back of the headunit, mine has one plugged in but the other one is empty? Clubtek Limited is a credit broker, not a lender and is authorised and regulated by the Financial Conduct Authority (FRN 619506). I’ve used a 4bit mux tapped into i2s lines between the cd transport and mainboard of the Audi mmi plus system in mine.

I watched the video by the Indian guy (can't remember the handle he goes by ATM *) that does repair/upgrade videos doing this job. I have the service manual and schematics on the unit, just need a little help finding and adjusting the MUX? The newer technology also uses finer-pitch surface mount parts, making it harder to work with for beginners. Inserting that into the deck gets the CD input selected, and the auxiliary audio can play through on top of the silent output from the CD itself. I tapped in at the power amps with a 4PDT relay to switch between my hack and normal operation and it wasn’t awful.

Sounds good, but now the problem is the phone audio is there using AM/FM or tape, and it kind of overrides the AM FM audio as you turn the volume up on the phone. I just installed a 2007 STi HU (C-124) with AUX and nothing happens when the iPod is connected I press CD/AUX. It's not uncommon for the aux jacks to fail (usually when someone bends the plug sideways in the jack too hard). Sold a number of them online, but the cars are now too old and not many requests come in, so I stopped making them.You can then wire in your new aux cord or Bluetooth input up to the other pins on the toggle switch. There are two other easy input options for some 2000-2008 vintage cars that have phone or Satellite (Sirius) hardware. It happened to me before with all the bluetooth modules I’ve worked with, it’s often even a problem with commercial headphones, but this time it was something else. Thus, by controlling the mux, you can control the audio that gets to the amplifier and thus the speakers. Interestingly, many 1980s and 1990s radios used simple 4-bit microcontrollers, which had just enough capability to run a simple head unit while being presumably cheaper than the more usual 8-bit parts.