iPod Connector to Factory Becker Radio

[Long Islander]

I have the original Becker CR220 (same as CDR220 but with cassette instead of CD).

I bought and installed the Becker ipod cable which plays and charges the ipod. Everything works fine except that I noticed that when I turn off the radio or the ignition, the ipod keeps playing (and draining the battery). On factory ipod installations, when you turn off the car, the ipod stops playing and just goes into charge mode.

I want the ipod to turn off completely (no charging and no playing) or turn off and continue charging (charging but no playing) when the ignition or radio are turned off.

So I'm thinking of connecting the ipod power wire on the new cable to either the terminal 5 wire ("Controlled Output for Auto Antenna") or terminal 7 wire ("Switched +") from the radio.

Does anyone know how terminal 5 and 7 differ?

[Loren]

The Porsche radio is un-switched so it is always on. If you turn it on without the key it will come on and stay on until the 1 hour (radio) timer shuts it off.

You can use the telephone prep connector for power as there is switched, un-switched, and ground there. It's been covered here many times before.

[Long Islander]

Thanks. I found a DIY on Motorola phone Bluetooth kit installation that said "All PCNA cars have a “telephone preparation” socket at the bottom of the front center console. Your Becker phone connector plugs directly into it." Assuming I can find this, that would power the ipod whenever the ignition is on, even if the radio is off and it would not power the ipod when the radio is on when the ignition is off.

What I would really prefer is for the ipod to come on when the radio is on (with or without ignition on) and turn off when the radio is turned off. That's why I was thinking of using terminal 5 or 7 and trying to figure out the differences.

[Long Islander]

I called Becker and got my answer. Terminal 7 output will turn on the ipod whenever the ignition is on, whether or not the radio is on. So, if the radio is on without the ignition being turned on (yes, that is possible), the ipod won't play. Terminal 5 output will go on and off with radio, regardless of ignition position