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What does the 'remote in' socket do?

My Sony MEX BT 3900U has a blue socket described as `remote in` in the installation instructions. There is a note to say simply a separate adaptor may be required.

Anyone know what this is for please?

Comments

  • It's for interfacing to the remote control switches which some cars have ready mounted in the steering wheel.
    A kind word lasts a minute, a skelped erse is sair for a day.
  • RichGold
    RichGold Posts: 1,244 Forumite
    1,000 Posts Combo Breaker
    Its the socket for the "rotary commander". Sony part no RM-X4S. Other Sony wired remotes also work when connected such as the RM-X11M, which is the one I have in my vans dashboard, its meant to go in a boat :) You can also connect your original steering wheel controls to it by using an adapter specific to your car.

    Here are the items that fit your socket. This first fits near your wiper and indicator stalks.
    sony-rm-x4s.jpg
    IMG_0551.JPG
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