The PM6007 has the following aux inputs: phono, cd, network, tuner, recorder. Can I use cd, network or tuner for an aux cable from my phone's 3.5 jack?
The 'Phono' input is unique, amongst those you've listed, as NOT being an aux input.
The CD, Network, Tuner and Recorder inputs are all electrically identical - they differ only in their labelling (they could just as easily have been labelled 'Line input 1-4')
Any one of the four could be used as an input for your phone.