I have a 2012 Ram 1500 Tradesman HD, which is a regular cab pickup. The dash speakers that come with the system are 8 Ohm, and are wired to the 4 Ohm Door Speakers. The factory system is 2 Ohm Stable, so I looked at 4 Ohm speakers to replace the dash speakers.
After much searching, I came across these MTX speakers. The high sensitivity and large tweeter seemed perfect for what I was looking for. The installation was incredibly straightforward, and the included Crutchfield directions and adapters allowed me to upgrade the speakers within minutes. The results are great, as it brings my sound stage up to my actual ears. Highs are clear and crisp, and the midrange is much clearer than it was before. A simple 69 dollar upgrade completely transformed my ride.
Pros: High sensitivity, clear midrange. Very high quality build, with a long factory warranty. You'll spend much more to receive a similarly built 3.5" speaker.
Cons: None so far.