Cadillac CTS 2003,2004,2005,2006,2007 Speaker Sizes:
Front door: 5.25"
Rear Door: 5.25"
Rear Deck: Subwoofer:8" 3.5"center
Cadillac SRX 2004,2005,2006 Speaker Sizes:
Rear door: 6.5"
Rear Deck: 6X9"
Check out our Speaker Index.
Here you can order good name-brand inexpensive replacement speakers that fit properly and sound good with an OEM or aftermarket radio.
Cadillac Installation Kits. Here you can also order the correct Car Stereo Dash Installation Kit and check if your vehicle requires other parts to complete installation such as a antenna adaptor.
Installation Kits Index.
Harness and Radio Plugs Index. Don't forget to order a Wire Harness if you are replacing the OEM radio with an aftermarket radio.