Todd, I wouldn't go cutting those nice doors. Depending on the size of your speakers, and the quality of the final sound you're after, one option is to cut holes in the 'cardboard' under-dash trim pieces and mount the there. I got a pair of 4" speakers in with no hassles - even with a whole bunch of a/c plumbing to negotiate on the RH side. You may need to use a bit of re-inforcing on the cardboard depending on what shape it's in.....
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