I plan on doing a similar build using the Wolfson Audio Card. I have a few questions:
Does the cassette player still work? If so, how did you connect the sound out from the cassette to the pi?
What DAC are you using?
Does the pi power off and on using the boom box power button?
Did you replace any speakers?
Sorry for the slow reply, I thought I had notifications set up on the thread, but clearly not
No, I decided to replace the cassette functionality completely. You could keep both by adding a switch on the line in to select between cassette and rpi though.
I am not actually, just the 3.5mm headphone jack. I was thinking of changing to use a DAC, but the sound quality on the Hifi itself is not the best as is, and a DAC might be a bit of a waste for this particular build.
No, although I have been thinking about this - I actually am using the Play button on the Cassette deck to trigger power on the rpi.
No, asides from the cassette deck replacement, the entire machine is stock.
Not especially, I looked around for a chip on the circuit board near where the outputs from the cassette connected, and then googled the IC numbers on the chips until I found a pre-amp one. Then just a case of matching the pins to the inputs.