Some car audio systems power the antenna whenever power is "on" to either the CD or the radio sections (as my last Honda did), some only power the antenna when the radio section is active (as my MX5 does).
The power is derived from inside the radio/cd player, this would require serious and detailed manipulation of the electronic circuitry, its not an external power issue.
In other words it is to do with the internal radio CD design, it differs by brand and model.
Other than putting a manual switch in, probably not a lot you can do.
The power is derived from inside the radio/cd player, this would require serious and detailed manipulation of the electronic circuitry, its not an external power issue.
In other words it is to do with the internal radio CD design, it differs by brand and model.
Other than putting a manual switch in, probably not a lot you can do.
