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Headunit replacement master thread

76K views 22 replies 14 participants last post by  sacredshieldgaming  
Thank you very much for this post. It was a huge help in getting everything setup in my car.

I wanted to include a few of my own experiences.

Parts
Other than the headunit, I bought the following:
  • SCOSCHE CRTSU01
  • Axxess AX-TOY28SWC (AX-SUB28SWC-6V looks like it will work and includes the camera but I already bought CRTSU01)
  • Axxess ASWC-1
  • Axxess AX-SUBUSB2
  • Metra 95-8908HG
  • Metra 40-LX11
  • Metra 70-1761

Mic Placement
I have eyesight but other than the unit being held in with bolts instead of screws, it was identical to yours. I had some dense Styrofoam lying around so I ended up making a hole in the middle and forcing the mic into the whole. I then placed the foam in the spot the OEM mic was in. The foam was a perfect fit, but I added a bit of tape just to hold it in place as I reassembled everything. I left the OEM mic in the compartment.

Telemetrics / Starlink
One thing that threw me for a loop is when I first pulled out the stock head unit and found an additional component (HT00) attached to the unit. Because I ran into some issues with the front speakers not working initially, I thought this might be an amp but it turns out it is a telemetrics device. It is on its own platter and can be removed from the stock stereo. I was able to stuff this down into the dash and connect the wires.

Configuring the Axxess SWC
For configuring the steering wheel controls, I highly recommend downloading their app and using the micro USB slot on the board to update the firmware and change the settings. Most phones will come with a micro USB to USB adapter so you can use a standard USB cable between your phone and the SWC device. I was able to update it while it was wired into the dash but I did find I would have to turn off the headunit and restart it for the settings to take effect. Hardest part of this whole process is opening the stupid little plastic door.

As mentioned above, I bought the Toyota version of the SWC -> 20 PIN adapter that doesn't include the camera component (since I already had this). This meant I didn't have to remove any pins from the 20 pin and supposedly I retained AUX input but I haven't tested it yet. There is an additional ground wire on this harness but it goes to a pin slot that isn't used by Subaru and can be ignored.