Bowtiebreaker- the Infinity basslink woofer is a powered subwoofer with built-in crossovers.
That isn't the problem. Your Stock unit will handle everything, but I'd recommend an aftermarket headunit or even an external amplifier if you want some serious sound. The speakers should work fine with the stock headunit, just that you may not be able to turn the volume up too loud. Rule of thumb is distortion=bad... as long as the speakers seem to be getting (and producing) a clean signal, your good to go. A new headunit or amplifier will be able to produce a signal much louder and MUCH purer than the OEM head unit.
I just did the sound in my windstar... well it's 90% done.
JVC KHD-HDR30 headunit
Alpine MRP-F550 4 Channel Amplifier
Alpine Type S 6.5" 2-way speakers (front)
Alpine Type S 6x9" 2-way speakers (rear)
I ran all new wire for everything, and the sound is excellent, just need a woofer. Then I just enable the amp's crossovers and I'll be good to go.
and I am in working on a Dual 12" subwoofer setup to add to that.
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1998 Ford Windstar GL 3.8L 253,100 miles
2005 Toyota Prius Package 6 1.5L 135,000 miles
2006 Toyota Sienna LE 3.3L 36,000 miles
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