Has anyone installed a Shocker kit in a 2010 Nissan Altima? I am having trouble finding places to mount the horns and so far have only found a place for 2 of the 4 trumpets and I am not even 100% sure those will work. They will not fit in front behind the grille. I already have a place for the compressor and tank. I really do not want to cut the trunk out for this. Any advice would be great. Thanks in advance for the help!