Ohh, it is very different then myne. But anyway, u must use digital multimeter with ring function to find which pin and wire route via pcb. TDA7342 have 4 analog inputs, one for radio, one for cd\usb and one for cd changer. I used cd input for my project. Dont know which in your pcb. Just use multimeter to route pins (IN{L,R}{1,2,3}) on your 7342 datasheet to cd connector.
Also, good idea to create your own topic and make all discussion there. May be someone else want to hel u
