In simple terms bose amp does not work with aftermarket head units because uses floating ground between it and head unit but not the car while all the other head units and amplifiers ever made use the typical phono connection which means the ground between the head unit, the amp and the car is common.
In the bose system the ground between head unit and amp is separate to car's ground (has different potential) so you will always get a really loud pop in the speakers when you turn the car on, mute and on shut down with an aftermarket head unit as you will be introducing 2 different grounds at different potentials to eachother.
You also get more power, cooler running amp and more control over the sound, as you can use a DSP on the head unit or a separate DSP altogether that allows you to for example measure the distance of each speaker to your ears and input those measurements to the DSP software so that sound from each speaker arrives in your ears at the same time and 999 other options, this is very niche nerd stuff though.
I just want modern oem looking tech in my D2 like wireless android auto and car play, reverse camera or something as simple as DAB radio working which can't be done using the bose amp.
Last edited by Ronin; 1st May 2022 at 08:07 AM.
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