I have a Jeep Cherokee and with really thin doors and I'm concerned that there are a lot of speakers on the market that are to big to fit in them. And I don't really want to buy kick panels. Tell me what you think about these speakers that I think would fit.

Also, please let me know if you have any other suggestions as far as great quality but fairly slender component speakers go. (5 1/4")

Kenwood Excelon KFC-XR51P

Diamond Audion S500s