If you have air press installed that could be the reason for whistle by the way never heard of whistle issue in any of corolla be it 1.3 1.6 or 1.6X 1.8 or 1.8x not even in 10 generation corolla. I have personally drove these variants and I own 1.3 Gli no similar issue ever experienced.
Check for bumper extensions aka body kit which named it Altis X also front fender mud shields too and in the end check for any abnormalities in door seals.
