factory radios without the amplified system probably only put out 7-12 watts. Aftermarket radios often put out around 20 watts constant and 40 watts dynamically. You will be much happier with an aftermarket radio. It will have a cleaner signal to the speakers and it will in most cases give you more control and the abillity to upgrade your system with ipod, satelite, hd radio, and you also in most cases have pre amp outputs so you can add amps. Alpine is decent but I honestly perfer eclipse because they also have higher voltage pre outs than alpine. Pioneer does too. Either way, you will not be disappointed. The wiring harness for our vechile is a bit pricey but you only gotta buy it once... I hope you get what you are looking for in a head unit.
THIS IS MY BONNEVILLE. THERE ARE MANY BONNEVILLES LIKE IT, BUT THIS ONE IS MINE
WITHOUT ME, MY BONNEVILLE IS NOTHING AND WITHOUT MY BONNEVILLE, I AM NOTHING...
Black 2001 SE Grey Leather Interior: