Wait, Camry XLE? You're from the US right? Ok hmm, i am going to assume its the same, in ours there are two options the easy messy unsafe way or the hard clean and safe way. The easy way is inside the inner guard, and the hard way is through that rubber boot attached to the firewall(on the left hand side of the vehicle from the drivers seat) and down to the rear of the vehicle via the existing wiring paths. Now remember to run the rca speaker and other wires on the opposite side of the vehicle to the power cable. Hope that helps.