anyone tell me the rpo code for a 99 z that has the 500 watt monsoon.
the codes I have are un0 and uz7 I think are for the 200 watt monsoon.
I think there were two monsoon systems one 200 watt and the other 500 watt

 

The only ones I have on my '99 are
W55: Entertainment System, Radio, AM/FM Stereo, Compact Disc, Equalizer, 10 Speaker System, Amplifier
U75: power antenna