Went to turn on my radio this morning, the front panel came alive, the antenna went up, but all I heard was the purr of the engine, not a sound out of the speakers. Is it the deck output amps, or the security, or what. The last think I did was change the oil which I would assume would be unrelated. I'm going to check the fader switch, I've had some problems with that before. What could it be and what can I do and what about the security?

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5 speed '91 190E 2.6 320,000 mi. (new car, fast, smooth as silk six, couldn't find any more Peugeots)
5 speed '85 Peugeot 505 2.5l Turbo Diesel 266,000 mi. (old car, fast for a diesel, had 2 others)
5 speed '01 Jetta V6 (new wifes car, pretty quick)
5 speed '85 Peugeot 505 2.2l Turbo Gas 197,000 mi. (wifes car, faster, sadly gone just short of 200k )
5 speed '83 Yamaha 750 Maxim 14,000 mi. (fastest)
0 speed 4' x 8' 1800 lb Harbor Freight utility trailer (only as fast as what's pulling it)