MP3 hard disc player connection to CDR 22

[jonathanw]

I am trying to hard wire my MP3 disc player to my CDR22 and have purchased a connector for pins 13-20 and have connected pins 18 19 & 20 as suggested by the retailer. My CDR unit doesn't recognise the MP3 as an input. What am I doing wrong or is it not possible to conncet the unit.

My MP£ unit is an Iriver.

Your help would be appreciated

Jonathan

[Orient Express]

Is the CDR 22 a MOST bus radio? If your car is an 03 or later, then this type of radio cannot accept an analog input for a MP3 player.

[jonathanw]

Hi Orient

My car is a 2002 facelift 996

Jonathan

[Orient Express]

OK, I was under the assumption that the Becker radios with a 2 digit designator were MOST radios, but if not try this:

The radio has 3 sets of connectors A, B, & C. You want to mess with connector C which is the one on the top of the radio. This connector is further broken down into 3 sub connectors, C1, C2, & C3. That is why the connector is in 3 colors.

C1 is the inner-most connector and has pins 1-6. This is where the phone and the Amp switch sense lines are.

C2 is the middle one and has pins 7-12. This one is for the CD changer logic and control

The analog Becker radios starting with the CD-220 have the ability to accept either a CD changer or AUX input, but not both at the same time. To change from a CD changer input to Aux-in input, you have to remove the CD changer control lines, and enable the AUX-in on the radio. If you do not have a CD changer, you may still have to enable the AUX-in feature.

C3 is the connector on the radio you are concerned about. It is the outboard one and has pins 13-20. This is the one that has the analog audio input lines.

1. In your case, I am assuming that you have a CD changer. If not then skip to the next part. You must make the radio think that there is not a changer, so to do that, connector C2 must not be plugged in. To do this you must separate the 3 subconnectors. They more or less slide apart and have a plastic spring clip holding them together. You can see the release nub between the connectors.

2. Then you add your new audio in lines to pin 18 (GND), pin 19 (yellow L+), and pin 20 (red R+) to connector C3

3. Now you need to enable the Aux-in feature of the radio. To do that:

Push and hold the "TP" button on the radio faceplate for about 8 seconds until "Becker 1" is displayed. Turn the tuning knob until "AUX off" is displayed. push either button directly under the arrows on the display to change the state to "On". Turn the radio on and off, and now Aux-in for your Mp3 player is ready.

However if this radio has a connector for a fiber optic cable on it, then all bets are off because it is a MOST bus radio and only accepts digital audio inputs from the changer