I wonder about the output level of your cartridge? If it's low-level <1mV, then a higher output moving magnet or a budget model Grado variable-reluctance design should help the situation. I also wonder if your integrated actually HAS a phono stage? aux/phono input may only be a line-level input if the optional phono stage isn't there, or is switched out of circuit via internal jumpers. If that's the case then not only do you not have the proper RIAA Eq. but the input impedance is probably too low, further aggravating the situation.
One lower cost phono stage that's also worth looking at used is the McCormack micro phono. I saw one up for sale only yesterday.
One lower cost phono stage that's also worth looking at used is the McCormack micro phono. I saw one up for sale only yesterday.