Finally getting around to updating my stereo in a 69 convertible. Thoughts on speaker placement? I have four 6.5 2-ways and four tweeters I'm planning to use. Along with a mid-bass cabinet I will reupholster with matching vinyl in the back seats to look like an arm rest. Lastly a sub in the trunk to round out the setup. Not a huge setup, at about 600 watts.

I don't want to cut up the interior, so looking for suggestions on speaker placement. Doesn't have to sound great, just load enough to hear music from time to time with the top down.