Richard Craver

Thoughts, Musings And The Occasional Rant

Self Inflicted Bite To The Butt – Part 2

Written By: richardwcraver - Feb• 15•15

The problem had been identified, the cable sticking out of the front of the radio, so I turned my attention to the rear panel of the delightfully unassuming Blaupunkt, the are many extra connections back there. With enough money for add-on modules it supports handsfree phone, CD changer, steering wheel controls and rear AUX. The modules that make any of that possible are more expensive than the cost of a new radio. So I turned to Google. Google is my friend.

It ends up that all one really needs for the CD/AUX to function is to get the left channel, right channel and ground wires to the appropriate pins on the radio. When the radio is switched to CD/AUX it detects that there is a load on those pins, but no information on the CD data pins and the display changes to AUX. So I chopped the end off of a 3.5mm patch cable, ohm’d the conductors, matched the 3.5mm plug conductors to the appropriate pins on the back of the radio, found some female pins in an old Honda wiring harness that was lying around the shop; and presto-chango I had a rear AUX cable that wasn’t in the way of my wife placing a drink in the drink holder. It still had a bit of alternator whine like the original front panel setup.

Happy Dance Time!

Bluetooth Receiver

Then I started looking around Amazon one evening. There’s this cool Bluetooth receiver that has a 3.5mm jack that will output to my new found rear AUX cable, and it’s only $7, highly reviewed. Meantime I had sold an old smart phone on eBay and had a few dollars burning a hole in my PayPal account, so the transaction was complete, all I needed to do was wait for shipping.

This is going to be so neat! All I have to do is get in my car, the phone auto-magically syncs to the radio and drive!

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