This is a short description of my install of my UHF radio under my steering wheel with the antenna (temporarily) attached to the grab rails. I'm still waiting for my roof rack. My vehicle is RHD with aux power. I used the grommet for my power outlets, under the grab bars. Removed the grab bar and fed the antenna through the grommet, along the roof inside, you'll see where to go once you take the grab bar off. Along the roof down the b pillar. Need to make sure you go behind the curtain airbag above the passenger door or you'll have a problem if you need it... To remove the B pillar trim, start at the bottom, remove the front door and rear door sill trim. Unscrew the bolts and lift the bottom piece off. There are two screws at the bottom of the next piece of trim which need to be removed and the top piece just clips in. You need a trim removal tool and be gentle. I have the removable hose out floor so lifted that in the front and rear. Once I got the cable to the ground, went under the middle of the chair as it was too tight where the wiring loom was. From there along rhs wiring loom on the floor on the RHS. I used the drivers side footwell power and the unit is a concealed one under my steering wheel behind the dash trim. Hardest part was getting the cable under the seat takes a bit of juggling... Sorry I didn't take pictures of the b pillar routing.
