sony makes okay amps but their subs suck, dont waste your money on them
i would suggest a system but you made no mention of the quantity or size of the subs or price range
when it comes to car audio nine times out of ten you get what you pay for- and you need to look for CEA-compliant brands which means that the amps have been tested and produce or exceed the advertised RMS wattage with minimum distortion and the subs can handle their advertised RMS wattage also (distortion is the main cause of speaker damage over time)
here are the top CEA-compliant brands
Alpine (highly recommend)
Blaupunkt (don't like their subs)
Clarion
Eclipse
Infinity (highly recommend)
JBL
JL Audio (very good but over priced)
JVC
Kenwood (don't like their subs)
Kicker (the best in my opinion)
MTX (highly recommend)
Orion
Pioneer
Polk Audio (highly recommend)
PPI
Rockford Fosgate (highly recommend)
Sony (don't like their subs)