I ran mine from under my driver side seat forward along the center hump to get into the dash. Then across the dash to the passenger side. Then along the passenger kick panel / door sill to the passenger B-Pillar. Then up the B-Pillar and under the bar padding to the passenger side connector on the sound bar.
I kept the factory connector in place and drilled a hole for the new wires I ran inside the soundbar to come out. I put a 4 pin molex connector on them so I can remove the soundbar.
I ran all 14 Ga. wire to my speakers. And 12 Ga. to the sub.
09 BLACK Sahara 4 Door - Auto, G2 4.88s
TF 2.5" Coil Lift w/shocks, TF Frnt Adj Trac, TF FLCA, JKS Discos, JKS Rear Adj Trac, LOD Full Rear GEN2,
A.C.E. Rock Rails, Viper TB: Check the Garage for more.