Wiring 4 speakers to each of 2 channels, you will need to wire them series-parallel and run them at 4 ohms. If you wire all 4 parallel, the load will be 1 ohm and the amp is only stable down to 2 ohms.
According to your manual, the 201s will deliver 50 watts into each channel at 4 ohms . So it will be supplying about 12.5 watts per speaker which is about what you get with the average factory radio. They will work OK, but they're not going to be very loud.
Answers & Comments
Hello jon_jonmay,
Wiring 4 speakers to each of 2 channels, you will need to wire them series-parallel and run them at 4 ohms. If you wire all 4 parallel, the load will be 1 ohm and the amp is only stable down to 2 ohms.
According to your manual, the 201s will deliver 50 watts into each channel at 4 ohms . So it will be supplying about 12.5 watts per speaker which is about what you get with the average factory radio. They will work OK, but they're not going to be very loud.
Hope this helps.