alpine spr-21gm

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    Wiring Alpine SPT-21GM speakers with an Alpine PDX-F4 amp

    I am replacing the speaker wires to the three pairs of speakers in my truck, while replacing the head unit, amp and speakers. My question is: Where do I wire the tweeters in this outfit? There are only two pairs of outputs from the head unit, which go to the amp, and only two pairs of outputs...