Thinking I might want to upgrade from the stock speakers to something better. I'm currently running a Jensen VX7020 unit and I have been looking at these speakers to upgrade, what do you think of them? (6.5" round)

http://www.jensenmobile.com/speakers/?sku=XS650

Should I worry about adding 1" dome tweeters also in the front doors?

Don't want a sub so whatever speakers I get have to kinda do it all and sound better than with the stock speakers.

Tony