diff --git a/GM.md b/GM.md
index afc7e83b..43076d4b 100644
--- a/GM.md
+++ b/GM.md
@@ -38,6 +38,8 @@ v8
 
 https://rusefi.com/docs/pinouts/GM-E92/
 
+https://rusefi.com/docs/pinouts/E92-adapter/
+
 https://en.wikipedia.org/wiki/GM_Ecotec_engine#Generation_III
 
 https://github.com/rusefi/rusefi/wiki/Gen-5-LS