Hello guys,
I'm trying to patch an auxiliary input into a car stereo. This modification taps into the tape deck input.
Some adventurous souls had already done this and scoped out the board to find the suitable input pins as per the picture below.
He has put in a little decoupling circuit (I assume) , with an electrolytic cap to the output and a resistor to ground from the output.
I was always under the impression that a decoupling cap should be non-polarized (as not to block AC) or perhaps i have my concepts wrong.
Could someone kindly explain the above circuit as well as comment on the component choice? I'm particularly concerned about the values as to prevent creating too high of a high pass filter (say 20 hz would be a good HPF value - don't need the infrasonics).
In case anybody's wondering, The radio in question is a Becker Audio 10 (6019) Radio from a 15 year old w203 C-Class.
Thanks!
I'm trying to patch an auxiliary input into a car stereo. This modification taps into the tape deck input.
Some adventurous souls had already done this and scoped out the board to find the suitable input pins as per the picture below.
He has put in a little decoupling circuit (I assume) , with an electrolytic cap to the output and a resistor to ground from the output.
I was always under the impression that a decoupling cap should be non-polarized (as not to block AC) or perhaps i have my concepts wrong.
Could someone kindly explain the above circuit as well as comment on the component choice? I'm particularly concerned about the values as to prevent creating too high of a high pass filter (say 20 hz would be a good HPF value - don't need the infrasonics).
In case anybody's wondering, The radio in question is a Becker Audio 10 (6019) Radio from a 15 year old w203 C-Class.
Thanks!