Parts list car MP3 player power supply:

5V/-5V Section:
Resistors:
R6 = 68k   0.25W
R7 = 6k8   0.25W
R5 = 1k 1206 SMD
R8 = not mounted

Capacitors:
C10,C12,C13,C15,C20,C24 = 100 nF 1206 SMD
C19 = 100 nF
C14,C17 = 2200 µF, 25 V, radial
C22 = 4700 µF, 25 V, radial low ESR (But Normal caps work)
C16,C23 = 470 µF, 25 V, radial

Inductors:
L3 = toroid 150...220µH 5A + extra winding(see text)
L5 = 22µH 0.2A choke
L4 = 22µH 5A choke

Semiconductors:
D3 = 20V Transiënt supressor
D8 = 5A Schottky diode, 1N5825, SR503, SR504 , ect.  
D9 = 3A Schottky diode, 1N5822 or 1N5821 or 1N5820, ect.
D10= wire link 1.3 mm diameter
D6 = Green LED
D7 = 1N4004
T1 = Not mounted
U2 = MC33167T or MC34167T (Motorola)Datasheet FARNELL 793-395 

Miscellaneous;
K1 = Heat sink 4 K/W, (e.g.,  Fischer SK129/50.8 )
PCB layout_smps.tif
Flying lead Fuse T 6.3A, slow blow
J1,J2 FASTON PCB solder connector 6.3mm

12V/-12V Section:
Resistors:
R6 = 4k7 0.25W
R7 = 6k8 0.25W
R5 = 2k2 1206 SMD
R8 = 4k7 0.25W

Capacitors:
C10,C12,C13,C15,C20,C24 = 100 nF 1206 SMD
C19 = 470 nF
C14,C17 = 2200 µF, 25 V, radial
C22 = 2200 µF, 25 V, radial low ESR (But Normal caps work)
C16,C23 = 470 µF, 25 V, radial

Inductors:
L3 = toroid 150...220µH 5A + extra winding(see text)
L5 = 22µH 0.2A choke
L4 = 22µH 2A choke

Semiconductors:
D3 = 20V Transiënt supressor
D8,D9,D10 = 3A Schottky diode, 1N5822 or 1N5821 or 1N5820
D6 = Green LED
D7 = 1N4004
T1 = N-MOSFET , BUZ11 or MTP3055EL (not critical)
U2 = MC33167T (Motorola)Datasheet FARNELL 793-395 

Miscellaneous;
K1 = Heat sink 4 K/W, (e.g.,  Fischer SK129/50.8 )
K2 = Heat sink 14 K/W (e.g.,  Fischer SK104/25.4 )
PCB layout_smps.tif
Flying lead Fuse T 6.3A, slow blow
J1,J2 FASTON PCB solder connector 6.3mm

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