Can't help you with the interior, but I can help you with the wax. I've been really happy with the results I've gotten with Zaino. It's a little bit expensive (not gonna find it at Wal-Mart), but it's the best stuff I've ever used. Visit their homepage at:
http://zainobros.com/ and if that dosen't convince you, check out
this comparrision test.
Hope that helps you a little, good luck.
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'95 GT Convertable