Quote: Originally Posted by Vicne
Well, directly seems a bit risky to me, but it could work.
I agree that sending from the pc to the head unit may be riskier if the HU cannot accept the negative voltages, but just spying should be no problem: the pc serial port has no problem with those levels, the worst that can happen is that it won't decode the incoming characters. OTOH it's
your car so you've every right to be cautious