Cadillac DTS 2006,2007,2008 Speaker Sizes:
Front door: 5.25"
Rear Door: 5.25"
Cadillac SRX 2007,2008 Speaker Sizes:
Rear door: 6.5"
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.