For those that have this, how is your auditory imagination? I would not describe my thinking as especially visual, but I can hear things. It's much easier for me to imagine the crunch of someone biting an apple than the image of an apple itself. The effect is quite strong - I can hear music almost as well inside my head as actually listening to it; the sound of instruments, pitches (I don't think it's perfect pitch but it's close), the inflection of someone's voice, etc. I had a lot of trouble learning to read music, because it was a lot easier for me to remember what things were supposed to sound like and just play that than to actually read it.
I have multisensory aphantasia. I assumed everyone was like this until I read an HN thread a long time ago. I have a very strong inner monologue. For example, I can hear part of a song in my head. Ie the guitar but it's my inner voice initiating the sound of a guitar. But I cannot hear a whole song. Maybe it's what rhythm had always been a challenge for me with guitar and piano.