Jensen XRS Series - Manual (Page 6)

Installing with Adapter Ring
The XRS525 and XRS652 come with an adapter ring to
fit a variety of different openings. To use the adapter ring,
secure the adapter ring to the vehicle using sheet metal
screws, then attach the speaker to the ring with the
machine screws provided.
INSTALLATION
FIGURE 4 - ADAPTER RING INSTALLATION
Door Panel Speaker Adapter Ring Grille
NOTE
If using both the adapter ring and the supplied grilles
(not factory), you will have to provide additional M4
screws of the appropriate length for your application.
Rear Deck
4