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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I'm guessing because the unit was fitted as part of the car's original spec and never had use for it - having a single CD slot and Tuner. However, if the user wishes to switch to their aux input wired into the CD input, they can simply press a button hooked up to the Arduino.

For me it's just convenience, I may upgrade to a used HK system as the 'standard' one is fairly poor, and the music on my iPod is compressed, although in theory I could stream TIDAL at 16/44.Most of the Bluetooth FM transmitter suffers from ground loop noise since most of them are made to be connect to the cigarette lighter for power. I have a 05 M3 with the 6 disc CD changer in the trunk Business CD stereo that is an Alpine with the Harmon Karden speakers. With no cassette in the deck providing a signal, only your external audio will be going through to the volume knob and then on to the speakers. I tried to exchange the head unit with Professional - radio and cd ok, but AUX was not even present on menu.

Sometimes, you get lucky, and there’s a simple additional input already hanging off the back of your standard stereo.

You can splice in to the wires going into those pins either by cutting in and soldering, or use non-solder tap connectors. However, it requires adding in a Arduino or similar that can speak I2C, a DPDT relay, and some supporting components.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. Please include what you were doing when this page came up and the Cloudflare Ray ID found at the bottom of this page.Here, an Arduino is used to command the TEA688OH signal processor (QFP chip top right) to switch inputs on command. Guide 1: Old School Radio/Cassette Decks An old two-knob AM radio from a 1970s Ford Bronco, modified with an auxiliary input. Convert car stereo speaker output to rca or rca jack input to fm radio, cd player, tv and aux adapter for audio. It's annoying when it works fine, for you to put the car back together and you've knocked it so it's crap!