PRO-95 Scanner Cast Audio VERY Low

Hey everyone. I'm setting up a stream using my old RS PRO-95. I'm running it from the headphone jack straight into the microphone input of my laptop. Unfortunately, the audio even when cranked is very low. I've tried adjusting volume on the mic in line and scanner with no luck. Cranking the volume also creates a lot of hiss.



I'm wondering what ground loop isolator people recommend for the PRO-95. I'm also wondering if I need an amplifier or something to raise audio levels. Any suggestions?