stereo

Replacing the factory Audi Bose stereo with an AUX input

Missing the factory stereo in your Audi with Bose? Trying to make an aftermarket radio work with the harness? Here is a deep dive into the audio signals of Audi’s Bose sound system.

At the beginning of this year, I acquired a 2007 Audi A4 Quattro 2.0T (B7 body-type). This car was a project that took over 6 months – and I hope to document the complete rebuild in another post!

Something’s missing…

Despite the fact it didn’t run, I was actually more upset that the stereo was missing. Knowing the factory units need to be coded to the car, and that it is hard to find a solid aftermarket harness for these Bose-amplified cars, I wasn’t sure how this would be resolved…

…until today! Read on to learn how to connect an AUX cable directly to the Bose amplifier – WITHOUT modifying any of the car’s wiring!

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Friday, July 22nd, 2022 car, electronics No Comments

Homebrew Stereo Gainclone Amplifier

LM3886T/NOPB

LM3886T 68W Audio Amplifier (Newark)

In 2012, one of my posts were featured on Hackaday, a globally read and frequently updated aggregator of projects that modify, create, and otherwise hack. The traffic this garnered was enough to throw a couple 500 Server errors, but it also resulted in getting the attention of someone at Farnell/Newark.

I was contacted through the comments┬áby a member of the Farnell team, who spent quite some time on my site and was “loving the content”. After further communications, he asked if I would be interested in reviewing products for them. Of course I said yes!

The question was, what would I review? After looking through some of their enormous catalog, I realized I’d rather create something out of the components I reviewed, and discovered the LM3886, a relatively inexpensive 68-watt audio amplifier. This is where the adventure began!

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Wednesday, April 9th, 2014 electronics, projects 2 Comments

Home Device Repair

Hello again, it has been a little bit. College has picked up, and as I am moving in a little over a week, most of my projects have been packed. However, I’ve worked on a few things in the past little while.

Remember my half-repaired LCD monitor? Well recently I obtained yet another defective LCD monitor. Symptoms: no power, no lights, no noise. I may or may not post photos about this one, because I did all repairs without taking photos, and it was a pain to take it apart, and I wish not to do so again, hehe. Basically, the cause was 4 blown caps in on the circuit board, which I’ve replaced and it now functions fully, aside from a little squealing when in stand-by or turned off (I believe due to a capacitor that started blowing but that I measured to be within proper values.)

LG LCD

A few months ago, however, I did document a repair project I undertook. I have two home theatre amps at home that I’ve had problems with. At one point, both had stopped functioning properly. So, naturally, I decided to set to fixing them.

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Sunday, February 14th, 2010 electronics, projects No Comments