Yes sir!!! The unfortunate side effect of using the telephone input is that is in mono, though with some ipod recordings having vocals on one side, instrumentals on another, it ends up working out quite nicely. One odd thing is that the volume for the voice-in mode is independent of the rest of the stereo.
Let's say I turn my AM/FM/CD to 30... it remains at those volumes regardless of switching between the 3. Now the Voice in, remains at the volume it was last played at. So if you were cranking it, turned off your car, got back in later and played the radio at soft volumes and then switched to Voice-in.... you're in for a surprise
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Sound quality is excellent though, as it's a direct in. I'm looking at low amp relays that could be wired to a jack, negating the switch. Specifically, I'm looking at something that will "click" over using the small output from a headphone jack on portable devices at low volumes (.1 -.5 volts). That way, the radio would switch automatically everytime the units is plugged in and played. Also, I didn't get a chance to further test the Remote Ground on the pin cluster, to see if it would trigger the voice-in mode, or provided a ground when in voice-in mode.
This is just one option that is simple and extremly cost effective. Not counting tools, this can be done for $10 with a $4 switch, and $6 cable. I've been pondering more "trick" (pardon the ebonics here) options as I'm going along. I also know that this will work on any Audi, VW, Porsche, older BMW radio's that have the telephone pins, or aux pins in the radio. If anyone needs to know whether it would work, just shoot me a pic of the back/pin cluster, or diagram.
I'd really like this to be a starting platform, as this is a first effort, and hence far from perfect. Any improvements, recommendations, or evolutions from this idea are absolutely welcome, and would love to hear some feedback from others out there. One option I liked, but didn't think of until afterwards was to make a jack-input, rather than running the cable.
I've seen the aux mods done on LS1GTO.Com, some which were executed very well, but didn't like the tapping/taking apart of the OEM stereo, or the non-universal 2.5mm jack. Almost all portable devices, except cellphones, use a 3.5 headphone jack, necessitating a reducer/adapter. Furthermore, the need for a blank CD was really discouraging for me as well. It just seemed too low rent for this caliber car. As far as I know, I haven't seen anyone else taking this route/approach to enabling an aux, though I'd imagine someone on a VW/Audi/Porsche forum has, or at least performed it without posting.
Linear Mode
