I rigged up a system in my SPF for awhile, sub and head unit in the trunk, remote wired control on the tunnel, custom thin speakers behind the seats etc, sounded great, and took it all out a few months after installed. Cranked up enough to hear while driving was so loud was ridiculous, just fubar for any regular use. I had read all the posts here and elsewhere about don't bother with a stereo install, use your sidepipes etc but I wasn't a believer until I actually tried it for myself