Today I bought a pair of 4” speakers to put in the back of my 453 prime. I’m going to install where it looks like they go. My rear panels have an integrated grill but no speakers. Speakers I bought are shallow mount and should fit there nicely. My question is are there speaker wires there. I thought I saw a pick with panels removed and it was there but not 100% sure. Saw another pic of a 2011 that had a speaker wire wrapped up down by the seat belt roll on floorboard. They said that wire was for a tweeter. Not sure. Just want to know if my prime is already wired for rears or do I gotta run wires to the radio? If I have to run wires to the radio. Do I have to remove the radio or can I get to it under the dash. If I have to remove the radio. How? Any help appreciated.