Toyota 2014 Sienna Manual page 484

3-2. Using the audio system
■
Installing the antenna
STEP 1
STEP 2
■
About the wrench
After using the included wrench, store it in the glove box for safekeeping.
484
SIENNA_OM_OM45483U_(U)
Tighten the antenna by one
hand until it will not turn any
more.
Using the wrench, tighten the
antenna an additional 1/8th
turn (20 to 45 degrees) to
secure it in place.
After tightening the antenna,
remove the wrench.