This looks like its the insides of your CD player and it has what appears to be very good capacitors, some have gold strips, Audio Grade, others look like Elna cerafines, not a bad start. To hot this up when you are not a digital know all, is difficult. The analogue section is easier. But where to start. looks to be a CDM4 transport. Hard to see much from this picture. The wire is important, but to tune it depends so much on what your system sounds like. A good start if you are game is bypass the fuse, then run solid core copper wire direct to the main transformer to bypass all the switches, how game are you. How far are you prepared to go.