I have a set of ALPINE 5x7 type R components. I spent 4 hours fabricating mounting rings for the woofers and tweeters only to find out my crappy base model head unit does not have enough power to run them well. $140 with all mounting hardware, shipping, and I will take photos when I remove them so you can see how to install. They sound awesome at the store, they are great speakers if you want to add an amp or have a higher power HU !!