Anybody have any ideas? I used the RCA harness that comes with the installation kit to hook up my factory subwoofer, but I still get a pop when the stereo turns on. I even used the resistors that cam with the kit.
2005 F-150, Supercrew
Sounds like you have a grounding or turn-on issue (or both).
Check your grounding, readjust any appropriate amplifier gains, and try adding a delay circuit to the amp or sub. A simple capacitor on the sub will help with turn-on voltage spikes, but will slightly alter the frequency response curve. If possible, you can add a turn-on delay to the amp powering the factory sub. More information about that here.
02 BMW 330Ci, Alpine DVI-9965, Alpine MRA F350 5ch, Alpine MRP T220 + 2x Kicker 6x9 FreeAir, Kicker KX1200.1 + Alpine 12" Type-R, 2-Way Security, Keyless Entry, Remote Start
Most likeky it's this.
Hope This Helps!!!
2002 Ford Focus Sony CDX-GT410u Sony XT-100HD HD Tuner Stock speakers, no amp, no subs