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Old 17th June 2004, 03:29 PM   #1
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Default Searching schematic for connecting mp3player to car antenna

My pioneer HU doesn`t have a audio input so i want to connect my laptop to my HU through the FM antenne, i tried google but couldn`t find any schematic`s partially cause i don`t know how to call it in english. Does anybody have a schematic or something else i could use? it can`t be that hard to create (like to build it myself instead of buying a device which probably costs too much).
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Old 17th June 2004, 04:06 PM   #2
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i think the best way is to open up your HU and connect the signal directly , but if u really want to use the antenna try to find a low power FM transmitter circuit on the net
here's one from Rods site http://sound.westhost.com/project54.htm
there are stereo transmitters also ' try to find one
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Old 17th June 2004, 09:47 PM   #3
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SSS that does sound like a good idea, opening up the HU, do you know what to look for, it`s a pioneer DEH-3330R. no support for cd-changer.
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Old 17th June 2004, 10:43 PM   #4
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u should look for the amp , usially its a chip amp connected to a heatsink , after that check for the datasheets and see where the input pins are , the connect your signal to the amps input pins .....
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Old 18th June 2004, 06:02 AM   #5
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if i do that, i need to insert a cd and set it on pause???

will the volume control still work if i connect directly??
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Old 18th June 2004, 07:26 AM   #6
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the volume controll will not work if u will connect to the amp , but , u can connect the signal to the vol controll and then u'll be ok

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if i do that, i need to insert a cd and set it on pause???
first check the chip amp , if it got muting circuitry then u should disconnect it
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Old 18th June 2004, 07:58 AM   #7
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keep in mind you will void the warranty of your headunit~!!! It can be done...and with careful planning, you could add a couple of connectors behind that serve as "inputs". I have yet to see Head Units without line-in jacks though...I suppose budget HUs do'nt have them...?
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Old 18th June 2004, 09:55 AM   #8
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It`s an older HU, and i don`t have the money to buy a new one with line in.
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Old 18th June 2004, 10:00 AM   #9
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well...then a simple "hack" as described will do...or you can find those Cassette tape kinda adapter where u plug a cassette with a line-in thingy tpo the Mp3 player and into the tape slot...
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Old 18th June 2004, 02:19 PM   #10
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wow it`s not that old, it`s a cdplayer with 2 preouts for the amps
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