Help "Updating" 1985 Electronics
I am looking to add Bluetooth connectivity without changing the radio as I picked the c4 for its exterior and interior I don't want to change how it looks. Mine came with a cd changer in the rear storage compartment a previous owner had installed, as far as I can tell it is tapped into the antenna. Would it be possible to use this tap to wire in a Bluetooth receiver, has anyone done something similar? I'm using a Bluetooth cassette adaptor I got on amazon but the sound quality has left some to be desired and I wasn't able to find any "high end" options.
I am also looking at adding remote door locks. I have seen a bunch of "universal actuators" but they leave me a bit concerned about the security. Does anyone with more knowledge of me know if these have any form of security like rolling codes and how they compare to the security of factory cars? Or if they even use different codes?






