Dual DIN 7" Touch screen radio install

[politby]

Originally Posted by BestGear

Hi

Switched power is already on the ISO block so nothing to do.

There is so much that is non standard on this car that I want to be extra careful. According to the pinout of the CDR23 ISO harness, pin 4 is constant +12V while pin 5 is labelled "Antenna 12V+" which could be either a switched 12V input or a remote/power antenna output.

Better go probe those leads with the trusty Fluke.

My Pioneer has an orange/white lighting feed as well. Usually I would just connect it to switched power, but does anyone know a good place to connect to the instrument lighting power source?

[jb92563]

This might help from Pelican and 101projects.com

Note: Pin 6 on yellow portion of C-connector is the switched + power source.
I took mine from Pin 7 on the Black connector.

[politby]

Originally Posted by jb92563

This might help from Pelican and 101projects.com

Note: Pin 6 on yellow portion of C-connector is the switched + power source.

Nope, my car has an entirely different configuration of the yellow connector - no switched power there.


I found this diagram on renntech.org - this is mostly consistent with what I found when measuring the voltages at the "A" (black) ISO connector in my car. According to this, pin 6 in the yellow connector is "Radio Code In". In the ACC ignition position, this wire is at just under 12 V, indicating I guess that the radio should ask for the code when plugged in again.



My car has the following pinout on the black ISO block:

1. Gray/pink - Speedometer/speed dependent volume
2. Blue/black - Reverse signal
3. not used
4. Red/black - Constant +12V
5. White - Power to antenna
6. not used
7. not used
8. Black - ground

Pin 7, which should be switched power, has no connection so I guess I have to get the switched power from the A/C panel as someone else suggested.

Pin 6, illumination, is not present either so I guess I'll just leave that one.

[tony_fury]

According to this, pin 6 in the yellow connector is "Radio Code In". In the ACC ignition position, this wire is at just under 12 V, indicating I guess that the radio should ask for the code when plugged in again.

This is more than likely the switched power lead you are looking.

I don't believe it asks for a code, rather than a 12V trigger to the radio to present code on the display.
The code is internal to the radio set by Becker matching the model and serial number to the radio code.

[politby]

Originally Posted by tony_fury

This is more than likely the switched power lead you are looking.

I don't believe it asks for a code, rather than a 12V trigger to the radio to present code on the display.
The code is internal to the radio set by Becker matching the model and serial number to the radio code.

Could be, but oddly enough it reads 11.6V, not actual battery voltage (12.4V on the constant voltage lead). Probably not safe to use as switched power for a head unit.

[tony_fury]

Originally Posted by politby

Could be, but oddly enough it reads 11.6V, not actual battery voltage (12.4V on the constant voltage lead). Probably not safe to use as switched power for a head unit.

Then your best bet is to obtain it off one of the AC/heating controls switched 12V leads.

[Gforrest2]

Originally Posted by tony_fury

Then your best bet is to obtain it off one of the AC/heating controls switched 12V leads.

+1 That's where I got my switched power.