2000 Silverado battery drain

[Mtrob]

My 2000 silverado 5.3 4wheel drive keeps running the battery down. With using the Power Probe tester plugged into OBD port then battery neg disconnected im showing a draw of 130mA. It should be below 40mA. The drain goes away when I unplug the horn relay. The horn is disconnected. So with that test it is after the relay between it and the horn. Is there anything else on that circuit? 

[davester]

charm.li (website) or alldata.com has wiring diagrams you can look through to see what things are on what circuit.