I purchased an Infinity basslink subwoofer (Amazon Christmas deal $139) to augment my 08 sport's sound system's bass. I've ordered a wiring kit and will drill a hole IF required for the power wire to the battery. I hope to go through an existing grommet if I can find one that's accessible. The basslink can use speaker level inputs and that's how I hope to go. I hope to access the speaker wires before they enter the doors. They should be accessible from the channel that runs along both sides of the fit at the bottom of the doors. Does anyone know the colors of the four wires associated with the four speakers? How about where and how they can most easily be accessed? I've done a few electronics mods on the car which went well but I'm no ICE expert by a long shot and any guidance or help would be appreciated.

 

Left Rear Door Speaker : BLU/BLK & BLU/WHT
Right Rear Door Speaker : BLY/YEL & PINK

Driver's Door Speaker : LT GREEN & GRN/BLK
Front Passenger's Door Speaker : GRY/RED & GRN/YEL

Left Tweeter : LT GRN & GRN/YEL (Parallel to the Driver's Door Speaker)
Right Tweeter : GRY/RED & GRN/YEL (Parallel to the Front Passenger's Door Speaker)

Best bet would be to go for the tweeters in the dash

 

Thanks for the info. I'm trying to do my "homework" before installing an Infinity Basslink I got from amazon ($139). Thanks for the info. tomorrow I dive in. According to the Mfr. you can tapp into two OR four of the speaker wires. I'm hoping to catch the rear speaker wires before they enter the door at the bottom of the B-Pillar. Thanks again for the help.