Wrong answers only - what is this?

https://lemmy.zip/post/61899922

ECU chip tuner for early CAN bus vehicles.
A chip tuner?!? Wow, that’s awesome, we don’t get to make music in modern cars. Did they have XLR outs or was it just 1/8th inch jack?

Like someone else stated, it was an EPIC pussy magnet that demonstrated your car audio prowess. Only a special few knew the secrets…