The stock speaker wires for the tweeter and the woofer of the stock speaker are in parallel. If you are installing coaxial speakers in their place. Just use the wires from the woofer to your new speakers and remove the stock tweeter/ disconnect it and do nothing with those wires. You're done. I didn't install the db series , but that is what you need to do if using the stock amplifier for your db series or any other coax.