I'm looking at getting the:

Kenwood DPX-301 head unit
Kenwood KAC-6202 60W x 2 Car Amp.

I current have the factor radio w/ subwoofer in my WRX. Do I need to get the "PAC TM-100 Tri-Way Crossover" w/ the Kenwood amp to power my subwoofer? Can I do without it? Does the factory radio have a crossover I can snag?

I *think* the factory sub is already powered (I really should already know this, but I don't mess with the factory stuff all that much). So I am guessing you could connect it to the speaker outs on the HU and get it to work. Although there may be more to it than that.

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