Originally Posted by aminor10
i have an 08 f150 lariat w/ a regular 6 disc cd player and no nav system. My friend gave me his stock sub for the back seat because he got an aftermarket system. Is there any way I can hook up the stock sub? There is no wiring under the back seat. I don't want to spend money on an aftermarket system because I don't care that much about sound quality, so I'm hoping the stock sub will work. Any ideas?
You have two options:
1. Buy an Audiophile head unit and make a harness.
2. Buy a Line Output Converter and Low Pass Active Crossover and tap the signal off of the head unit speaker out. I believe you'll have to deal with the bass roll off from the stock head unit so you may want to look at something with a bass restoration processor. You'll need to make a cheap voltage divider to lower an accessory switched power source to 5v from 12v for the amp turn on. I would personally also install in line high pass crossovers to remove the sub signal from the door speakers.
Either way you go, you'll also need to pull a 20A fused power wire to run it, and run a ground wire.
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