Summary: I paired these up with 4 Pioneer TS-A1676R speakers in my Wife's XV. I mounted them on top of the dash for ease of installation and to keep from loosing any sound quality down inside the existing speaker wells.
Pros: Crystal clear highs
Cons: No adapter cable available for Subaru installations
Need to fabricate mounting hardware to use in original dash locations
Summary: They were easy to install. Looks and feels sturdy. I liked the fact that they gave you a long lead wire; that was especially helpful when installing it on my car doors. Sounds great, the price was reasonable. I have no complaints!
Pros: Sturdy product, easy to install.
Cons: The metal cup-like disk they provide for a surface mount requires a longer screw than what's in the kit. Fortunately, I had longer screws in my garage, so it wasn't an issue.