Hi!
I'm attempting to add an auxilliary input to a factory radio in a 2004 Mazda 6 with an in-dash cd changer and modular cassette deck. As far as I know, no company is yet manufacturing a solution for adding Aux-INs to this head unit.
My question is this-
Would it be possible to tap into the cassette deck (which never gets used) behind the actual tape mechanism and modify it to accept a standard RCA line level signal? I'd like to avoid using a tape adaptor if possible.
If this unit has real potentiometer volume controls, then this is probably electrically a simple task. In most situations, the volume control sits just ahead of the power amp stage, which expects to see (approximately) a line-level signal coming from the preamp (tape or whatever). So you can locate the control and do what you want. You can disconnect the input (the pin that the wiper would touch if rotated fully clockwise) and connect it to your aux input, or you can put in a switch, a mixer, whatever. Note, of course, that there will be two controls in tandem for stereo. (The opposite pin of the control is ground, the middle is the wiper.)
If it's a digital control, all bets are off.
And even if it's a real potentiometer, the chances are that this will be a mechanically difficult job. They don't make consumer products with the idea that they will ever be worked on. Plan to bend alot of little sheet metal tabs, and learn some colorful language!
Hope this helps!
Bob Masta dqatechATdaqartaDOTcom D A Q A R T A Data AcQuisition And Real-Time Analysis
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