I'm about 90% sure it's all in the mirror itself. Being it's accessory/option it must be able to be readily installed or removed. The indicators are on the inner A pillars. It makes no sense to have anything but power an ground inside the caR.I'm pretty sure BLIS isn't ultrasonic it's camera based. Therefore there must be a module that processes the camera signals. The question would be whether any software or hardware is outside the mirror assembly. If I were Volvo I'd shove all of the processing in the CEM or another module and just have the cameras be sensors.
The phone module was an option and it required a CAN change and a different rear view mirror, center console lid, and headrest. Removing it requires a CAN update as well. I'd assume BLIS at least requires a CAN change.I'm about 90% sure it's all in the mirror itself. Being it's accessory/option it must be able to be readily installed or removed. The indicators are on the inner A pillars. It makes no sense to have anything but power an ground inside the caR.
The link says its compatible with a 2007 R along with other 07+ models.
That said, I've noticed they have saved me a few times from getting hit. I've seen idiots on the phone, not paying attention, or just wanting to get over NOW who only stop because the BLIS (or equivalent) blinks like crazy and probably makes an obnoxious noise (not sure if the first gen Volvo ones do this, but they should). It's a good save for the merge now, signal later driver.meh... Not a fan of BLIS, Volvo or otherwise. I watch them in action on other cars on the interstate and notice too frequently their BLIS indicator doesn't turn on until my front bumper is even with their rear bumper as I'm passing them. Which is, of course, too late to avoid collision because if they were to attempt a lane change or turn, they would strike me.
Personally, I prefer correctly aimed wide angle mirrors. Not only can you see the traffic in your "blind" spots, there's no electronic gizmo to fail or not work because of a dirty camera lens.