Okey Dokey -- the two pins near the H are BOTH hot (+) pins. The two pins near the G are BOTH ground (--) pins.
The two pins near the L are BOTH left channel and the two pins near the R are BOTH right channel.
Example: The pin between the H and the R is Right Channel Positive. Etc, etc, etc.
Comprende?
BTW, that's a top of the line cartridge. Didn't it come w/ an instruction sheet?