Jump to content

Kebin

Regular Member
  • Posts

    3
  • Joined

  • Last visited

Contact Methods

  • First Name
    KEVIN

Profile Information

  • Lexus Model
    is200
  • Lexus Year
    2000
  • Location
    Other / Non-US

Kebin's Achievements

Member

Member (1/14)

  • First Post
  • Week One Done
  • One Month Later
  • One Year In

Recent Badges

0

Reputation

  1. Hi All, I have successfully wired in an aux 3.5mm audio jack to a first gen LS400 Pioneer head unit via the AM/FM radio audio circuit. When a music source is connected to the 3.5mm jack, the audio is played together with the radio on both AM or FM channels. To fix this I simply cut the audio channels on the printed circuit board for the AM radio (I don't listen to AM!) so that there is no longer any AM audio signal being fed to the processor. Therefore, this method converts the "AM" button on the head unit to effectively become the "AUX IN" function. Here is how I did it: Original Pioneer LS400 Stereo Remove the upper AM/FM circuit board from the radio Locate TUR and TUL audio circuits Solder in your Left and Right audio circuits of the 3.5mm audio jack to TUL and TUR circuits. Connect the ground wire to a ground point on the PCB (grey wire in pic). Locate AM audio circuits AMR and AML. Cut the tracks on the PCB using a knife to create an open circuit. AM radio audio will no longer play through the stereo system. After carrying out these small modifications simply reassemble the head unit and refit back into the dash. Route your new auxilary cable to your preferred location, select AM and connect your music player.
  2. Hi All, I have successfully wired in an aux 3.5mm audio jack to a first gen LS400 Pioneer head unit via the AM/FM radio audio circuit. When a music source is connected to the 3.5mm jack, the audio is played together with the radio on both AM or FM channels. To fix this I simply cut the audio channels on the printed circuit board for the AM radio (I don't listen to AM!) so that there is no longer any AM audio signal being fed to the processor. Therefore, this method converts the "AM" button on the head unit to effectively become the "AUX IN" function. Here is how I did it: Original Pioneer LS400 Stereo Remove the upper AM/FM circuit board from the radio Locate TUR and TUL audio circuits Solder in your Left and Right audio circuits of the 3.5mm audio jack to TUL and TUR circuits. Connect the ground wire to a ground point on the PCB (grey wire in pic). Locate AM audio circuits AMR and AML. Cut the tracks on the PCB using a knife to create an open circuit. AM radio audio will no longer play through the stereo system. After carrying out these small modifications simply reassemble the head unit and refit back into the dash. Route your new auxilary cable to your preferred location, select AM and connect your music player.
  3. Hi All, I have successfully wired in an aux 3.5mm audio jack to a first gen LS400 Pioneer head unit via the AM/FM radio audio circuit. When a music source is connected to the 3.5mm jack, the audio is played together with the radio on both AM or FM channels. To fix this I simply cut the audio channels on the printed circuit board for the AM radio (I don't listen to AM!) so that there is no longer any AM audio signal being fed to the processor. Therefore, this method converts the "AM" button on the head unit to effectively become the "AUX IN" function. Here is how I did it: Original Pioneer LS400 Stereo Remove the upper AM/FM circuit board from the radio Locate TUR and TUL audio circuits Solder in your Left and Right audio circuits of the 3.5mm audio jack to TUL and TUR circuits. Connect the ground wire to a ground point on the PCB (grey wire in pic). Locate AM audio circuits AMR and AML. Cut the tracks on the PCB using a knife to create an open circuit. AM radio audio will no longer play through the stereo system. After carrying out these small modifications simply reassemble the head unit and refit back into the dash. Route your new auxilary cable to your preferred location, select AM and connect your music player.
×
×
  • Create New...

Forums


News


Membership