[AM340iMiami]

Not sure what this could be. It’s subtle (or are my eyes playing tricks on me?) but It appears to be on armrest and only part of the middle part of drivers seat back. My only thoughts are possible die transfer, sweat, or sunscreen. Only problem with the latter two is I don’t exactly have a sweating problem and it’s in an odd location on the seat and I never put on sunscreen and get in my car (I leave that for the misses’ car).

I’ve tried some high quality leather cleaner and I tried the ol dawn dish soap. No luck. Any ideas of what I could try to get this out? Steam maybe?