diff --git a/pkg/talkgroups/cache.go b/pkg/talkgroups/cache.go
index d6a866f..85ac5d0 100644
--- a/pkg/talkgroups/cache.go
+++ b/pkg/talkgroups/cache.go
@@ -127,7 +127,7 @@ func (t *cache) add(rec *Talkgroup) error {
 	t.Lock()
 	defer t.Unlock()
 
-	tg := TG(rec.System.ID, int(rec.Talkgroup.Tgid))
+	tg := TG(rec.System.ID, rec.Talkgroup.Tgid)
 	t.tgs[tg] = rec
 	t.systems[int32(rec.System.ID)] = rec.System.Name
 
diff --git a/pkg/talkgroups/talkgroup.go b/pkg/talkgroups/talkgroup.go
index a491661..cd8f9c9 100644
--- a/pkg/talkgroups/talkgroup.go
+++ b/pkg/talkgroups/talkgroup.go
@@ -28,7 +28,11 @@ func (ids *IDs) Packed() []int64 {
 	return r
 }
 
-func TG[T int | uint | int64 | uint64 | int32 | uint32](sys, tgid T) ID {
+type intId interface {
+	int | uint | int64 | uint64 | int32 | uint32
+}
+
+func TG[T intId, U intId](sys T, tgid U) ID {
 	return ID{
 		System:    uint32(sys),
 		Talkgroup: uint32(tgid),
@@ -42,14 +46,5 @@ func (t ID) Pack() int64 {
 
 func (t ID) String() string {
 	return fmt.Sprintf("%d:%d", t.System, t.Talkgroup)
-}
-
-func PackedTGs(tg []ID) []int64 {
-	s := make([]int64, len(tg))
-
-	for i, v := range tg {
-		s[i] = v.Pack()
-	}
-
-	return s
+
 }