1. Do you here good sound out of the jack?

2. I don't know of anyone having classic II wiring diagrams

3. It's near impossible to use surface mount caps for the 10uf caps on a classic II board, the pads are just to close together, it's relatively easy to use these caps for the 47 uf.

4. I think it would be best to uncap your motherboard if, figure out where that trace leads and go from there...

Also, check polarity... Good luck.. Josh